664470354 has 16 divisors (see below), whose sum is σ = 1361354400. Its totient is φ = 216087840.

The previous prime is 664470311. The next prime is 664470419. The reversal of 664470354 is 453074466.

It is a happy 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, 1350304 + ... + 1350795.

It is an arithmetic number, because the mean of its divisors is an integer number (85084650).

Almost surely, 2^664470354 is an apocalyptic number.

664470354 is an abundant number, since it is smaller than the sum of its proper divisors (696884046).

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

664470354 is a wasteful number, since it uses less digits than its factorization.

664470354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2701145.

The product of its (nonzero) digits is 241920, while the sum is 39.

The square root of 664470354 is about 25777.3224753852. The cubic root of 664470354 is about 872.6200813918.

The spelling of 664470354 in words is "six hundred sixty-four million, four hundred seventy thousand, three hundred fifty-four".