909407940 has 96 divisors (see below), whose sum is σ = 3004022784. Its totient is φ = 201156480.

The previous prime is 909407861. The next prime is 909407953. The reversal of 909407940 is 49704909.

909407940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 909407892 and 909407901.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21904 + ... + 47943.

It is an arithmetic number, because the mean of its divisors is an integer number (31291904).

Almost surely, 2^909407940 is an apocalyptic number.

It is an amenable number.

909407940 is an abundant number, since it is smaller than the sum of its proper divisors (2094614844).

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

909407940 is a wasteful number, since it uses less digits than its factorization.

909407940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69897 (or 69895 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 909407940 is about 30156.3913623630. The cubic root of 909407940 is about 968.8419026790.

The spelling of 909407940 in words is "nine hundred nine million, four hundred seven thousand, nine hundred forty".