1276488444 has 96 divisors (see below), whose sum is σ = 3724148736. Its totient is φ = 330598080.

The previous prime is 1276488443. The next prime is 1276488461. The reversal of 1276488444 is 4448846721.

1276488444 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1276488444² = 3258845495331082272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1276488393 and 1276488402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276488443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352089 + ... + 355695.

It is an arithmetic number, because the mean of its divisors is an integer number (38793216).

Almost surely, 2^1276488444 is an apocalyptic number.

1276488444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1276488444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1862074368).

1276488444 is an abundant number, since it is smaller than the sum of its proper divisors (2447660292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1276488444 is a wasteful number, since it uses less digits than its factorization.

1276488444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015 (or 4013 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 48.

The square root of 1276488444 is about 35727.9784482694. The cubic root of 1276488444 is about 1084.7732383747.

The spelling of 1276488444 in words is "one billion, two hundred seventy-six million, four hundred eighty-eight thousand, four hundred forty-four".