19328364 has 36 divisors (see below), whose sum is σ = 53300520. Its totient is φ = 5856960.

The previous prime is 19328357. The next prime is 19328381. The reversal of 19328364 is 46382391.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24009 + ... + 24800.

It is an arithmetic number, because the mean of its divisors is an integer number (1480570).

Almost surely, 2^19328364 is an apocalyptic number.

It is an amenable number.

19328364 is an abundant number, since it is smaller than the sum of its proper divisors (33972156).

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

19328364 is a wasteful number, since it uses less digits than its factorization.

19328364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48830 (or 48825 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 19328364 is about 4396.4035301596. The cubic root of 19328364 is about 268.3685987711.

It can be divided in two parts, 1932 and 8364, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 19328364 in words is "nineteen million, three hundred twenty-eight thousand, three hundred sixty-four".