4029901988 has 24 divisors (see below), whose sum is σ = 8156914752. Its totient is φ = 1706291424.

The previous prime is 4029901961. The next prime is 4029902021. The reversal of 4029901988 is 8891099204.

It is a happy number.

It is a super-2 number, since 2×4029901988² = 32480220065772704288, which contains 22 as substring.

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, 864695 + ... + 869342.

It is an arithmetic number, because the mean of its divisors is an integer number (339871448).

Almost surely, 2^4029901988 is an apocalyptic number.

It is an amenable number.

4029901988 is an abundant number, since it is smaller than the sum of its proper divisors (4127012764).

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

4029901988 is a wasteful number, since it uses less digits than its factorization.

4029901988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734131 (or 1734129 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 50.

The square root of 4029901988 is about 63481.5090242820. The cubic root of 4029901988 is about 1591.3467734316.

The spelling of 4029901988 in words is "four billion, twenty-nine million, nine hundred one thousand, nine hundred eighty-eight".