381624324 has 12 divisors (see below), whose sum is σ = 890456784. Its totient is φ = 127208104.

The previous prime is 381624307. The next prime is 381624337. The reversal of 381624324 is 423426183.

It is a tau number, because it is divible by the number of its divisors (12).

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, 15901002 + ... + 15901025.

It is an arithmetic number, because the mean of its divisors is an integer number (74204732).

Almost surely, 2^381624324 is an apocalyptic number.

It is an amenable number.

381624324 is an abundant number, since it is smaller than the sum of its proper divisors (508832460).

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

381624324 is a wasteful number, since it uses less digits than its factorization.

381624324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31802034 (or 31802032 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 381624324 is about 19535.2072934996. The cubic root of 381624324 is about 725.3462153005.

It can be divided in two parts, 38162 and 4324, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 381624324 in words is "three hundred eighty-one million, six hundred twenty-four thousand, three hundred twenty-four".