1958749038 has 48 divisors (see below), whose sum is σ = 4303877760. Its totient is φ = 643730832.

The previous prime is 1958749019. The next prime is 1958749103. The reversal of 1958749038 is 8309478591.

1958749038 is a `hidden beast` number, since 19 + 587 + 49 + 0 + 3 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 959623 + ... + 961661.

It is an arithmetic number, because the mean of its divisors is an integer number (89664120).

Almost surely, 2^1958749038 is an apocalyptic number.

1958749038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1958749038 is an abundant number, since it is smaller than the sum of its proper divisors (2345128722).

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

1958749038 is a wasteful number, since it uses less digits than its factorization.

1958749038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2773 (or 2770 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 1958749038 is about 44257.7568116596. The cubic root of 1958749038 is about 1251.1986450061.

The spelling of 1958749038 in words is "one billion, nine hundred fifty-eight million, seven hundred forty-nine thousand, thirty-eight".