380555690 has 32 divisors (see below), whose sum is σ = 731496960. Its totient is φ = 142228800.

The previous prime is 380555689. The next prime is 380555699. The reversal of 380555690 is 96555083.

It is a super-2 number, since 2×380555690² = 289645266382752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (380555699) 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, 12176 + ... + 30155.

It is an arithmetic number, because the mean of its divisors is an integer number (22859280).

Almost surely, 2^380555690 is an apocalyptic number.

380555690 is a deficient number, since it is larger than the sum of its proper divisors (350941270).

380555690 is a wasteful number, since it uses less digits than its factorization.

380555690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42398.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 380555690 is about 19507.8366304416. The cubic root of 380555690 is about 724.6685381376.

It can be divided in two parts, 3805 and 55690, that added together give a palindrome (59495).

The spelling of 380555690 in words is "three hundred eighty million, five hundred fifty-five thousand, six hundred ninety".