354665644 has 12 divisors (see below), whose sum is σ = 622662768. Its totient is φ = 176762000.

The previous prime is 354665627. The next prime is 354665657. The reversal of 354665644 is 446566453.

It is a self number, because there is not a number n which added to its sum of digits gives 354665644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141307 + ... + 143794.

It is an arithmetic number, because the mean of its divisors is an integer number (51888564).

Almost surely, 2^354665644 is an apocalyptic number.

It is an amenable number.

354665644 is a deficient number, since it is larger than the sum of its proper divisors (267997124).

354665644 is a wasteful number, since it uses less digits than its factorization.

354665644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285416 (or 285414 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 43.

The square root of 354665644 is about 18832.5687042421. The cubic root of 354665644 is about 707.8475072430.

The spelling of 354665644 in words is "three hundred fifty-four million, six hundred sixty-five thousand, six hundred forty-four".