30423664 has 40 divisors (see below), whose sum is σ = 62853120. Its totient is φ = 14232768.

The previous prime is 30423619. The next prime is 30423683. The reversal of 30423664 is 46632403.

It is a super-3 number, since 3×30423664³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16417 + ... + 18175.

It is an arithmetic number, because the mean of its divisors is an integer number (1571328).

Almost surely, 2^30423664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30423664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31426560).

30423664 is an abundant number, since it is smaller than the sum of its proper divisors (32429456).

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

30423664 is a wasteful number, since it uses less digits than its factorization.

30423664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837 (or 1831 counting only the distinct ones).

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

The square root of 30423664 is about 5515.7650421315. The cubic root of 30423664 is about 312.1791103950.

The spelling of 30423664 in words is "thirty million, four hundred twenty-three thousand, six hundred sixty-four".