1012276540 has 48 divisors (see below), whose sum is σ = 2342045664. Its totient is φ = 364448000.

The previous prime is 1012276537. The next prime is 1012276541. The reversal of 1012276540 is 456722101.

It is a junction number, because it is equal to n+sod(n) for n = 1012276499 and 1012276508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012276541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559 + ... + 44998.

It is an arithmetic number, because the mean of its divisors is an integer number (48792618).

Almost surely, 2^1012276540 is an apocalyptic number.

1012276540 is a gapful number since it is divisible by the number (10) 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 1012276540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1171022832).

1012276540 is an abundant number, since it is smaller than the sum of its proper divisors (1329769124).

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

1012276540 is a wasteful number, since it uses less digits than its factorization.

1012276540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45678 (or 45676 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1012276540 is about 31816.2936244937. The cubic root of 1012276540 is about 1004.0755473487.

Adding to 1012276540 its reverse (456722101), we get a palindrome (1468998641).

The spelling of 1012276540 in words is "one billion, twelve million, two hundred seventy-six thousand, five hundred forty".