380926690 has 16 divisors (see below), whose sum is σ = 715480128. Its totient is φ = 145745776.

The previous prime is 380926673. The next prime is 380926697. The reversal of 380926690 is 96629083.

It is a super-2 number, since 2×380926690² = 290210286308712200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (380926697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827872 + ... + 828331.

It is an arithmetic number, because the mean of its divisors is an integer number (44717508).

Almost surely, 2^380926690 is an apocalyptic number.

380926690 is a deficient number, since it is larger than the sum of its proper divisors (334553438).

380926690 is a wasteful number, since it uses less digits than its factorization.

380926690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656233.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 380926690 is about 19517.3433130639. The cubic root of 380926690 is about 724.9039523971.

The spelling of 380926690 in words is "three hundred eighty million, nine hundred twenty-six thousand, six hundred ninety".