355564644 has 24 divisors (see below), whose sum is σ = 830067168. Its totient is φ = 118462080.

The previous prime is 355564633. The next prime is 355564667. The reversal of 355564644 is 446465553.

It is a junction number, because it is equal to n+sod(n) for n = 355564596 and 355564605.

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, 22204 + ... + 34700.

It is an arithmetic number, because the mean of its divisors is an integer number (34586132).

Almost surely, 2^355564644 is an apocalyptic number.

It is an amenable number.

355564644 is an abundant number, since it is smaller than the sum of its proper divisors (474502524).

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

355564644 is a wasteful number, since it uses less digits than its factorization.

355564644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14875 (or 14873 counting only the distinct ones).

The product of its digits is 864000, while the sum is 42.

The square root of 355564644 is about 18856.4218238774. The cubic root of 355564644 is about 708.4450822662.

Subtracting 355564644 from its reverse (446465553), we obtain a palindrome (90900909).

The spelling of 355564644 in words is "three hundred fifty-five million, five hundred sixty-four thousand, six hundred forty-four".