3446656440 has 32 divisors (see below), whose sum is σ = 10339969680. Its totient is φ = 919108352.

The previous prime is 3446656417. The next prime is 3446656457. The reversal of 3446656440 is 446566443.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3446656392 and 3446656401.

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, 14360949 + ... + 14361188.

Almost surely, 2^3446656440 is an apocalyptic number.

3446656440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3446656440 is an abundant number, since it is smaller than the sum of its proper divisors (6893313240).

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

3446656440 is a wasteful number, since it uses less digits than its factorization.

3446656440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28722151 (or 28722147 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

The square root of 3446656440 is about 58708.2314501127. The cubic root of 3446656440 is about 1510.5415130156.

The spelling of 3446656440 in words is "three billion, four hundred forty-six million, six hundred fifty-six thousand, four hundred forty".