3457579644 has 72 divisors (see below), whose sum is σ = 9215722880. Its totient is φ = 1090000800.

The previous prime is 3457579639. The next prime is 3457579667. The reversal of 3457579644 is 4469757543.

3457579644 is a `hidden beast` number, since 3 + 4 + 5 + 7 + 579 + 64 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427599 + ... + 435609.

Almost surely, 2^3457579644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3457579644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4607861440).

3457579644 is an abundant number, since it is smaller than the sum of its proper divisors (5758143236).

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

3457579644 is a wasteful number, since it uses less digits than its factorization.

3457579644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8671 (or 8666 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 54.

The square root of 3457579644 is about 58801.1874369897. The cubic root of 3457579644 is about 1512.1355751027.

The spelling of 3457579644 in words is "three billion, four hundred fifty-seven million, five hundred seventy-nine thousand, six hundred forty-four".