1258992464 has 10 divisors (see below), whose sum is σ = 2439297930. Its totient is φ = 629496224.

The previous prime is 1258992463. The next prime is 1258992467. The reversal of 1258992464 is 4642998521.

It can be written as a sum of positive squares in only one way, i.e., 1246090000 + 12902464 = 35300^2 + 3592^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258992463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39343499 + ... + 39343530.

It is an arithmetic number, because the mean of its divisors is an integer number (243929793).

Almost surely, 2^1258992464 is an apocalyptic number.

It is an amenable number.

1258992464 is a deficient number, since it is larger than the sum of its proper divisors (1180305466).

1258992464 is an equidigital number, since it uses as much as digits as its factorization.

1258992464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78687037 (or 78687031 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The square root of 1258992464 is about 35482.2838047384. The cubic root of 1258992464 is about 1079.7943321214.

The spelling of 1258992464 in words is "one billion, two hundred fifty-eight million, nine hundred ninety-two thousand, four hundred sixty-four".