1290346896 has 40 divisors (see below), whose sum is σ = 3336220000. Its totient is φ = 429751296.

The previous prime is 1290346877. The next prime is 1290346927. The reversal of 1290346896 is 6986430921.

It is a super-2 number, since 2×1290346896² = 3329990224033669632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49191 + ... + 70713.

It is an arithmetic number, because the mean of its divisors is an integer number (83405500).

Almost surely, 2^1290346896 is an apocalyptic number.

1290346896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1290346896 is an abundant number, since it is smaller than the sum of its proper divisors (2045873104).

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

1290346896 is a wasteful number, since it uses less digits than its factorization.

1290346896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22783 (or 22777 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 1290346896 is about 35921.3988591758. The cubic root of 1290346896 is about 1088.6848026293.

The spelling of 1290346896 in words is "one billion, two hundred ninety million, three hundred forty-six thousand, eight hundred ninety-six".