30432664 has 8 divisors (see below), whose sum is σ = 57061260. Its totient is φ = 15216328.

The previous prime is 30432593. The next prime is 30432667. The reversal of 30432664 is 46623403.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×30432664² = 1852294076273792, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30432667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1902034 + ... + 1902049.

Almost surely, 2^30432664 is an apocalyptic number.

It is an amenable number.

30432664 is a deficient number, since it is larger than the sum of its proper divisors (26628596).

30432664 is a wasteful number, since it uses less digits than its factorization.

30432664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3804089 (or 3804085 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 30432664 is about 5516.5808251126. The cubic root of 30432664 is about 312.2098905468.

The spelling of 30432664 in words is "thirty million, four hundred thirty-two thousand, six hundred sixty-four".