1958138752 has 16 divisors (see below), whose sum is σ = 3900979800. Its totient is φ = 979069312.

The previous prime is 1958138719. The next prime is 1958138759. The reversal of 1958138752 is 2578318591.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-4 number, since 4×1958138752⁴ (a number of 38 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1958138696 and 1958138705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1958138759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7648852 + ... + 7649107.

Almost surely, 2^1958138752 is an apocalyptic number.

It is an amenable number.

1958138752 is a deficient number, since it is larger than the sum of its proper divisors (1942841048).

1958138752 is an equidigital number, since it uses as much as digits as its factorization.

1958138752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15297973 (or 15297961 counting only the distinct ones).

The product of its digits is 604800, while the sum is 49.

The square root of 1958138752 is about 44250.8615961317. The cubic root of 1958138752 is about 1251.0686864936.

The spelling of 1958138752 in words is "one billion, nine hundred fifty-eight million, one hundred thirty-eight thousand, seven hundred fifty-two".