3656444398 has 16 divisors (see below), whose sum is σ = 5774832000. Its totient is φ = 1731550392.

The previous prime is 3656444369. The next prime is 3656444419. The reversal of 3656444398 is 8934446563.

It is a super-3 number, since 3×3656444398³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

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, 170733 + ... + 190951.

It is an arithmetic number, because the mean of its divisors is an integer number (360927000).

Almost surely, 2^3656444398 is an apocalyptic number.

3656444398 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3656444398 is a deficient number, since it is larger than the sum of its proper divisors (2118387602).

3656444398 is a wasteful number, since it uses less digits than its factorization.

3656444398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24999.

The product of its digits is 7464960, while the sum is 52.

The square root of 3656444398 is about 60468.5405644952. The cubic root of 3656444398 is about 1540.5873396365.

The spelling of 3656444398 in words is "three billion, six hundred fifty-six million, four hundred forty-four thousand, three hundred ninety-eight".