381373720 has 64 divisors (see below), whose sum is σ = 1056121920. Its totient is φ = 120697344.

The previous prime is 381373717. The next prime is 381373721. The reversal of 381373720 is 27373183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381373721) 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, 48747 + ... + 56026.

It is an arithmetic number, because the mean of its divisors is an integer number (16501905).

Almost surely, 2^381373720 is an apocalyptic number.

It is an amenable number.

381373720 is an abundant number, since it is smaller than the sum of its proper divisors (674748200).

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

381373720 is a wasteful number, since it uses less digits than its factorization.

381373720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104804 (or 104800 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 381373720 is about 19528.7920773406. The cubic root of 381373720 is about 725.1874077551.

The spelling of 381373720 in words is "three hundred eighty-one million, three hundred seventy-three thousand, seven hundred twenty".