3999015622 has 16 divisors (see below), whose sum is σ = 6860028672. Its totient is φ = 1712720520.

The previous prime is 3999015607. The next prime is 3999015649. The reversal of 3999015622 is 2265109993.

3999015622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73368 + ... + 115675.

It is an arithmetic number, because the mean of its divisors is an integer number (428751792).

Almost surely, 2^3999015622 is an apocalyptic number.

3999015622 is a deficient number, since it is larger than the sum of its proper divisors (2861013050).

3999015622 is a wasteful number, since it uses less digits than its factorization.

3999015622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190563.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 3999015622 is about 63237.7705331236. The cubic root of 3999015622 is about 1587.2708243955.

The spelling of 3999015622 in words is "three billion, nine hundred ninety-nine million, fifteen thousand, six hundred twenty-two".