380657530 has 48 divisors (see below), whose sum is σ = 771605352. Its totient is φ = 135027200.

The previous prime is 380657513. The next prime is 380657579. The reversal of 380657530 is 35756083.

It can be written as a sum of positive squares in 4 ways, for example, as 230766481 + 149891049 = 15191^2 + 12243^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 380657530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45774 + ... + 53446.

Almost surely, 2^380657530 is an apocalyptic number.

380657530 is an abundant number, since it is smaller than the sum of its proper divisors (390947822).

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

380657530 is a wasteful number, since it uses less digits than its factorization.

380657530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743 (or 7732 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 380657530 is about 19510.4466888895. The cubic root of 380657530 is about 724.7331748988.

The spelling of 380657530 in words is "three hundred eighty million, six hundred fifty-seven thousand, five hundred thirty".