1938940958 has 16 divisors (see below), whose sum is σ = 2924132640. Its totient is φ = 964244736.

The previous prime is 1938940919. The next prime is 1938940979. The reversal of 1938940958 is 8590498391.

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, 292610 + ... + 299162.

It is an arithmetic number, because the mean of its divisors is an integer number (182758290).

Almost surely, 2^1938940958 is an apocalyptic number.

1938940958 is a deficient number, since it is larger than the sum of its proper divisors (985191682).

1938940958 is a wasteful number, since it uses less digits than its factorization.

1938940958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7331.

The product of its (nonzero) digits is 2799360, while the sum is 56.

The square root of 1938940958 is about 44033.4072949164. The cubic root of 1938940958 is about 1246.9667163461.

The spelling of 1938940958 in words is "one billion, nine hundred thirty-eight million, nine hundred forty thousand, nine hundred fifty-eight".