3898913444 has 6 divisors (see below), whose sum is σ = 6823098534. Its totient is φ = 1949456720.

The previous prime is 3898913413. The next prime is 3898913489. The reversal of 3898913444 is 4443198983.

It can be written as a sum of positive squares in only one way, i.e., 3898503844 + 409600 = 62438^2 + 640^2 .

It is a super-2 number, since 2×3898913444² = 30403052087607882272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487364177 + ... + 487364184.

It is an arithmetic number, because the mean of its divisors is an integer number (1137183089).

Almost surely, 2^3898913444 is an apocalyptic number.

It is an amenable number.

3898913444 is a deficient number, since it is larger than the sum of its proper divisors (2924185090).

3898913444 is a wasteful number, since it uses less digits than its factorization.

3898913444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974728365 (or 974728363 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 53.

The square root of 3898913444 is about 62441.2799676624. The cubic root of 3898913444 is about 1573.9147231109.

The spelling of 3898913444 in words is "three billion, eight hundred ninety-eight million, nine hundred thirteen thousand, four hundred forty-four".