1258188404 has 24 divisors (see below), whose sum is σ = 2466918048. Its totient is φ = 556446240.

The previous prime is 1258188397. The next prime is 1258188439. The reversal of 1258188404 is 4048818521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384794 + ... + 388049.

It is an arithmetic number, because the mean of its divisors is an integer number (102788252).

Almost surely, 2^1258188404 is an apocalyptic number.

It is an amenable number.

1258188404 is a deficient number, since it is larger than the sum of its proper divisors (1208729644).

1258188404 is a wasteful number, since it uses less digits than its factorization.

1258188404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772895 (or 772893 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 41.

The square root of 1258188404 is about 35470.9515519389. The cubic root of 1258188404 is about 1079.5644116753.

The spelling of 1258188404 in words is "one billion, two hundred fifty-eight million, one hundred eighty-eight thousand, four hundred four".