381938480 has 80 divisors (see below), whose sum is σ = 1107143424. Its totient is φ = 119043840.

The previous prime is 381938471. The next prime is 381938489. The reversal of 381938480 is 84839183.

It is an interprime number because it is at equal distance from previous prime (381938471) and next prime (381938489).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (381938489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24842 + ... + 37161.

Almost surely, 2^381938480 is an apocalyptic number.

It is an amenable number.

381938480 is an abundant number, since it is smaller than the sum of its proper divisors (725204944).

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

381938480 is a wasteful number, since it uses less digits than its factorization.

381938480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62034 (or 62028 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 381938480 is about 19543.2464038092. The cubic root of 381938480 is about 725.5451975205.

The spelling of 381938480 in words is "three hundred eighty-one million, nine hundred thirty-eight thousand, four hundred eighty".