1292920464 has 40 divisors (see below), whose sum is σ = 3643686432. Its totient is φ = 391793920.

The previous prime is 1292920463. The next prime is 1292920487. The reversal of 1292920464 is 4640292921.

It is not an unprimeable number, because it can be changed into a prime (1292920463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1223829 + ... + 1224884.

Almost surely, 2^1292920464 is an apocalyptic number.

It is an amenable number.

1292920464 is an abundant number, since it is smaller than the sum of its proper divisors (2350765968).

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

1292920464 is a wasteful number, since it uses less digits than its factorization.

1292920464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448735 (or 2448729 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 1292920464 is about 35957.2032282824. The cubic root of 1292920464 is about 1089.4081077932.

The spelling of 1292920464 in words is "one billion, two hundred ninety-two million, nine hundred twenty thousand, four hundred sixty-four".