1958231004 has 24 divisors (see below), whose sum is σ = 4646651520. Its totient is φ = 641679984.

The previous prime is 1958230993. The next prime is 1958231039. The reversal of 1958231004 is 4001328591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1382224 + ... + 1383639.

It is an arithmetic number, because the mean of its divisors is an integer number (193610480).

Almost surely, 2^1958231004 is an apocalyptic number.

It is an amenable number.

1958231004 is an abundant number, since it is smaller than the sum of its proper divisors (2688420516).

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

1958231004 is a wasteful number, since it uses less digits than its factorization.

1958231004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765929 (or 2765927 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1958231004 is about 44251.9039590389. The cubic root of 1958231004 is about 1251.0883330033.

Adding to 1958231004 its reverse (4001328591), we get a palindrome (5959559595).

The spelling of 1958231004 in words is "one billion, nine hundred fifty-eight million, two hundred thirty-one thousand, four".