380243920 has 60 divisors (see below), whose sum is σ = 1028415204. Its totient is φ = 130368000.

The previous prime is 380243909. The next prime is 380243921. The reversal of 380243920 is 29342083.

It can be written as a sum of positive squares in 2 ways, for example, as 213627456 + 166616464 = 14616^2 + 12908^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380243921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44581 + ... + 52420.

Almost surely, 2^380243920 is an apocalyptic number.

It is an amenable number.

380243920 is an abundant number, since it is smaller than the sum of its proper divisors (648171284).

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

380243920 is a wasteful number, since it uses less digits than its factorization.

380243920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97028 (or 97015 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 380243920 is about 19499.8441019409. The cubic root of 380243920 is about 724.4705893294.

The spelling of 380243920 in words is "three hundred eighty million, two hundred forty-three thousand, nine hundred twenty".