383958640 has 40 divisors (see below), whose sum is σ = 961375968. Its totient is φ = 141768960.

The previous prime is 383958613. The next prime is 383958661. The reversal of 383958640 is 46859383.

383958640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

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, 183556 + ... + 185635.

Almost surely, 2^383958640 is an apocalyptic number.

It is an amenable number.

383958640 is an abundant number, since it is smaller than the sum of its proper divisors (577417328).

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

383958640 is a wasteful number, since it uses less digits than its factorization.

383958640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369217 (or 369211 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 383958640 is about 19594.8625920163. The cubic root of 383958640 is about 726.8221403251.

The spelling of 383958640 in words is "three hundred eighty-three million, nine hundred fifty-eight thousand, six hundred forty".