1290496432 has 20 divisors (see below), whose sum is σ = 2506462840. Its totient is φ = 643667328.

The previous prime is 1290496423. The next prime is 1290496457. The reversal of 1290496432 is 2346940921.

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, 92058 + ... + 105145.

It is an arithmetic number, because the mean of its divisors is an integer number (125323142).

Almost surely, 2^1290496432 is an apocalyptic number.

It is an amenable number.

1290496432 is a deficient number, since it is larger than the sum of its proper divisors (1215966408).

1290496432 is a wasteful number, since it uses less digits than its factorization.

1290496432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197620 (or 197614 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 1290496432 is about 35923.4802322938. The cubic root of 1290496432 is about 1088.7268562514.

The spelling of 1290496432 in words is "one billion, two hundred ninety million, four hundred ninety-six thousand, four hundred thirty-two".