955658640 has 40 divisors (see below), whose sum is σ = 2962542528. Its totient is φ = 254842240.

The previous prime is 955658609. The next prime is 955658653. The reversal of 955658640 is 46856559.

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 (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 955658640.

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, 1990716 + ... + 1991195.

Almost surely, 2^955658640 is an apocalyptic number.

It is an amenable number.

955658640 is an abundant number, since it is smaller than the sum of its proper divisors (2006883888).

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

955658640 is a wasteful number, since it uses less digits than its factorization.

955658640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3981927 (or 3981921 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 48.

The square root of 955658640 is about 30913.7289889136. The cubic root of 955658640 is about 984.9955388153.

The spelling of 955658640 in words is "nine hundred fifty-five million, six hundred fifty-eight thousand, six hundred forty".