2236407990 has 64 divisors (see below), whose sum is σ = 5627653632. Its totient is φ = 567705600.

The previous prime is 2236407949. The next prime is 2236408001. The reversal of 2236407990 is 997046322.

It is a happy number.

It is a congruent number.

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, 137910 + ... + 153270.

It is an arithmetic number, because the mean of its divisors is an integer number (87932088).

Almost surely, 2^2236407990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2236407990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2813826816).

2236407990 is an abundant number, since it is smaller than the sum of its proper divisors (3391245642).

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

2236407990 is a wasteful number, since it uses less digits than its factorization.

2236407990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15605.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 2236407990 is about 47290.6755079688. The cubic root of 2236407990 is about 1307.7267628248.

The spelling of 2236407990 in words is "two billion, two hundred thirty-six million, four hundred seven thousand, nine hundred ninety".