3998899340 has 48 divisors (see below), whose sum is σ = 8481194400. Its totient is φ = 1583718912.

The previous prime is 3998899309. The next prime is 3998899361. The reversal of 3998899340 is 439988993.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1135262 + ... + 1138778.

It is an arithmetic number, because the mean of its divisors is an integer number (176691550).

Almost surely, 2^3998899340 is an apocalyptic number.

It is an amenable number.

3998899340 is an abundant number, since it is smaller than the sum of its proper divisors (4482295060).

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

3998899340 is a wasteful number, since it uses less digits than its factorization.

3998899340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074 (or 4072 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 62.

The square root of 3998899340 is about 63236.8511233758. The cubic root of 3998899340 is about 1587.2554395414.

The spelling of 3998899340 in words is "three billion, nine hundred ninety-eight million, eight hundred ninety-nine thousand, three hundred forty".