6634113440 has 24 divisors (see below), whose sum is σ = 15673093380. Its totient is φ = 2653645312.

The previous prime is 6634113389. The next prime is 6634113461. The reversal of 6634113440 is 443114366.

It can be written as a sum of positive squares in 2 ways, for example, as 6526700944 + 107412496 = 80788^2 + 10364^2 .

It is a super-2 number, since 2×6634113440² = 88022922269577267200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 6634113397 and 6634113406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20731445 + ... + 20731764.

Almost surely, 2^6634113440 is an apocalyptic number.

It is an amenable number.

6634113440 is an abundant number, since it is smaller than the sum of its proper divisors (9038979940).

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

6634113440 is a wasteful number, since it uses less digits than its factorization.

6634113440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41463224 (or 41463216 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 6634113440 is about 81450.0671577378. The cubic root of 6634113440 is about 1879.0036821381.

The spelling of 6634113440 in words is "six billion, six hundred thirty-four million, one hundred thirteen thousand, four hundred forty".