380520136 has 64 divisors (see below), whose sum is σ = 767516400. Its totient is φ = 176504832.

The previous prime is 380520121. The next prime is 380520149. The reversal of 380520136 is 631025083.

It can be written as a sum of positive squares in 8 ways, for example, as 331604100 + 48916036 = 18210^2 + 6994^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832420 + ... + 832876.

Almost surely, 2^380520136 is an apocalyptic number.

It is an amenable number.

380520136 is an abundant number, since it is smaller than the sum of its proper divisors (386996264).

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

380520136 is a wasteful number, since it uses less digits than its factorization.

380520136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 380520136 is about 19506.9253343524. The cubic root of 380520136 is about 724.6459696776.

The spelling of 380520136 in words is "three hundred eighty million, five hundred twenty thousand, one hundred thirty-six".