380538557 has 24 divisors (see below), whose sum is σ = 476453880. Its totient is φ = 301916160.

The previous prime is 380538553. The next prime is 380538559. The reversal of 380538557 is 755835083.

It can be written as a sum of positive squares in 4 ways, for example, as 21473956 + 359064601 = 4634^2 + 18949^2 .

It is not a de Polignac number, because 380538557 - 2² = 380538553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380538553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47069 + ... + 54557.

It is an arithmetic number, because the mean of its divisors is an integer number (19852245).

Almost surely, 2^380538557 is an apocalyptic number.

It is an amenable number.

380538557 is a deficient number, since it is larger than the sum of its proper divisors (95915323).

380538557 is a wasteful number, since it uses less digits than its factorization.

380538557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7581 (or 7574 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 44.

The square root of 380538557 is about 19507.3974942841. The cubic root of 380538557 is about 724.6576628722.

The spelling of 380538557 in words is "three hundred eighty million, five hundred thirty-eight thousand, five hundred fifty-seven".