3999228942 has 16 divisors (see below), whose sum is σ = 8009378640. Its totient is φ = 1331256192.

The previous prime is 3999228931. The next prime is 3999228943. The reversal of 3999228942 is 2498229993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3999228943) 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, 450267 + ... + 459062.

It is an arithmetic number, because the mean of its divisors is an integer number (500586165).

Almost surely, 2^3999228942 is an apocalyptic number.

3999228942 is an abundant number, since it is smaller than the sum of its proper divisors (4010149698).

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

3999228942 is a wasteful number, since it uses less digits than its factorization.

3999228942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910067.

The product of its digits is 5038848, while the sum is 57.

The square root of 3999228942 is about 63239.4571608580. The cubic root of 3999228942 is about 1587.2990472236.

The spelling of 3999228942 in words is "three billion, nine hundred ninety-nine million, two hundred twenty-eight thousand, nine hundred forty-two".