427733664 has 24 divisors (see below), whose sum is σ = 1122801120. Its totient is φ = 142577856.

The previous prime is 427733659. The next prime is 427733693. The reversal of 427733664 is 466337724.

It is a tau number, because it is divible by the number of its divisors (24).

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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2227684 + ... + 2227875.

It is an arithmetic number, because the mean of its divisors is an integer number (46783380).

Almost surely, 2^427733664 is an apocalyptic number.

It is an amenable number.

427733664 is an abundant number, since it is smaller than the sum of its proper divisors (695067456).

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

427733664 is a wasteful number, since it uses less digits than its factorization.

427733664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4455572 (or 4455564 counting only the distinct ones).

The product of its digits is 508032, while the sum is 42.

The square root of 427733664 is about 20681.7229456349. The cubic root of 427733664 is about 753.4558525418.

The spelling of 427733664 in words is "four hundred twenty-seven million, seven hundred thirty-three thousand, six hundred sixty-four".