381798624 has 24 divisors (see below), whose sum is σ = 1002221640. Its totient is φ = 127266176.

The previous prime is 381798623. The next prime is 381798653. The reversal of 381798624 is 426897183.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381798623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1988439 + ... + 1988630.

It is an arithmetic number, because the mean of its divisors is an integer number (41759235).

Almost surely, 2^381798624 is an apocalyptic number.

It is an amenable number.

381798624 is an abundant number, since it is smaller than the sum of its proper divisors (620423016).

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

381798624 is a wasteful number, since it uses less digits than its factorization.

381798624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977082 (or 3977074 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 381798624 is about 19539.6679603314. The cubic root of 381798624 is about 725.4566280760.

The spelling of 381798624 in words is "three hundred eighty-one million, seven hundred ninety-eight thousand, six hundred twenty-four".