3319721990 has 32 divisors (see below), whose sum is σ = 6773850720. Its totient is φ = 1161229824.

The previous prime is 3319721987. The next prime is 3319722013. The reversal of 3319721990 is 991279133.

3319721990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3319721990² = 22041108181779120200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669539 + ... + 674478.

It is an arithmetic number, because the mean of its divisors is an integer number (211682835).

Almost surely, 2^3319721990 is an apocalyptic number.

3319721990 is an abundant number, since it is smaller than the sum of its proper divisors (3454128730).

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

3319721990 is a wasteful number, since it uses less digits than its factorization.

3319721990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344056.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 3319721990 is about 57617.0286460522. The cubic root of 3319721990 is about 1491.7655437233.

The spelling of 3319721990 in words is "three billion, three hundred nineteen million, seven hundred twenty-one thousand, nine hundred ninety".