7338821990 has 16 divisors (see below), whose sum is σ = 13395935520. Its totient is φ = 2894183040.

The previous prime is 7338821989. The next prime is 7338821993. The reversal of 7338821990 is 991288337.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7338821993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5167475 + ... + 5168894.

It is an arithmetic number, because the mean of its divisors is an integer number (837245970).

Almost surely, 2^7338821990 is an apocalyptic number.

7338821990 is a deficient number, since it is larger than the sum of its proper divisors (6057113530).

7338821990 is a wasteful number, since it uses less digits than its factorization.

7338821990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10336447.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 7338821990 is about 85666.9247142676. The cubic root of 7338821990 is about 1943.3101448655.

The spelling of 7338821990 in words is "seven billion, three hundred thirty-eight million, eight hundred twenty-one thousand, nine hundred ninety".