381624620 has 24 divisors (see below), whose sum is σ = 863059344. Its totient is φ = 140907456.

The previous prime is 381624577. The next prime is 381624629. The reversal of 381624620 is 26426183.

It is not an unprimeable number, because it can be changed into a prime (381624629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733634 + ... + 734153.

It is an arithmetic number, because the mean of its divisors is an integer number (35960806).

Almost surely, 2^381624620 is an apocalyptic number.

It is an amenable number.

381624620 is an abundant number, since it is smaller than the sum of its proper divisors (481434724).

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

381624620 is a wasteful number, since it uses less digits than its factorization.

381624620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467809 (or 1467807 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 381624620 is about 19535.2148695631. The cubic root of 381624620 is about 725.3464028344.

The spelling of 381624620 in words is "three hundred eighty-one million, six hundred twenty-four thousand, six hundred twenty".