3998826790 has 48 divisors (see below), whose sum is σ = 8402931792. Its totient is φ = 1366134336.

The previous prime is 3998826737. The next prime is 3998826817. The reversal of 3998826790 is 976288993.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124252 + ... + 153088.

It is an arithmetic number, because the mean of its divisors is an integer number (175061079).

Almost surely, 2^3998826790 is an apocalyptic number.

3998826790 is an abundant number, since it is smaller than the sum of its proper divisors (4404105002).

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

3998826790 is a wasteful number, since it uses less digits than its factorization.

3998826790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29141 (or 29134 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 61.

The square root of 3998826790 is about 63236.2774837356. The cubic root of 3998826790 is about 1587.2458405602.

The spelling of 3998826790 in words is "three billion, nine hundred ninety-eight million, eight hundred twenty-six thousand, seven hundred ninety".