1631361296 has 20 divisors (see below), whose sum is σ = 3298187712. Its totient is φ = 780216096.

The previous prime is 1631361287. The next prime is 1631361301. The reversal of 1631361296 is 6921631361.

It is a super-2 number, since 2×1631361296² = 5322679356173599232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2216156 + ... + 2216891.

Almost surely, 2^1631361296 is an apocalyptic number.

1631361296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1631361296 is an abundant number, since it is smaller than the sum of its proper divisors (1666826416).

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

1631361296 is a wasteful number, since it uses less digits than its factorization.

1631361296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4433078 (or 4433072 counting only the distinct ones).

The product of its digits is 34992, while the sum is 38.

The square root of 1631361296 is about 40390.1138398990. The cubic root of 1631361296 is about 1177.1994526268.

The spelling of 1631361296 in words is "one billion, six hundred thirty-one million, three hundred sixty-one thousand, two hundred ninety-six".