1296677376 has 160 divisors (see below), whose sum is σ = 3881834880. Its totient is φ = 427327488.

The previous prime is 1296677297. The next prime is 1296677399. The reversal of 1296677376 is 6737766921.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1340445 + ... + 1341411.

It is an arithmetic number, because the mean of its divisors is an integer number (24261468).

Almost surely, 2^1296677376 is an apocalyptic number.

1296677376 is a gapful number since it is divisible by the number (16) 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 1296677376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1940917440).

1296677376 is an abundant number, since it is smaller than the sum of its proper divisors (2585157504).

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

1296677376 is an frugal number, since it uses more digits than its factorization.

1296677376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1069 counting only the distinct ones).

The product of its digits is 4000752, while the sum is 54.

The square root of 1296677376 is about 36009.4067710092. The cubic root of 1296677376 is about 1090.4622722881.

The spelling of 1296677376 in words is "one billion, two hundred ninety-six million, six hundred seventy-seven thousand, three hundred seventy-six".