381375310 has 16 divisors (see below), whose sum is σ = 686718000. Its totient is φ = 152496256.

The previous prime is 381375283. The next prime is 381375311. The reversal of 381375310 is 13573183.

It is a happy number.

It is a super-2 number, since 2×381375310² = 290894254155192200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381375311) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 35781 + ... + 45199.

It is an arithmetic number, because the mean of its divisors is an integer number (42919875).

Almost surely, 2^381375310 is an apocalyptic number.

381375310 is a deficient number, since it is larger than the sum of its proper divisors (305342690).

381375310 is a wasteful number, since it uses less digits than its factorization.

381375310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13475.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 381375310 is about 19528.8327864212. The cubic root of 381375310 is about 725.1884155560.

The spelling of 381375310 in words is "three hundred eighty-one million, three hundred seventy-five thousand, three hundred ten".