940590640 has 80 divisors (see below), whose sum is σ = 2468011680. Its totient is φ = 330229760.

The previous prime is 940590613. The next prime is 940590641. The reversal of 940590640 is 46095049.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 940590640.

It is not an unprimeable number, because it can be changed into a prime (940590641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7092 + ... + 43948.

It is an arithmetic number, because the mean of its divisors is an integer number (30850146).

Almost surely, 2^940590640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 940590640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1234005840).

940590640 is an abundant number, since it is smaller than the sum of its proper divisors (1527421040).

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

940590640 is a wasteful number, since it uses less digits than its factorization.

940590640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36910 (or 36904 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 940590640 is about 30669.0501972265. The cubic root of 940590640 is about 979.7912369422.

The spelling of 940590640 in words is "nine hundred forty million, five hundred ninety thousand, six hundred forty".