381740810 has 32 divisors (see below), whose sum is σ = 750760704. Its totient is φ = 138600000.

The previous prime is 381740809. The next prime is 381740857. The reversal of 381740810 is 18047183.

It is a super-2 number, since 2×381740810² = 291452092038912200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80300 + ... + 84920.

It is an arithmetic number, because the mean of its divisors is an integer number (23461272).

Almost surely, 2^381740810 is an apocalyptic number.

381740810 is a deficient number, since it is larger than the sum of its proper divisors (369019894).

381740810 is a wasteful number, since it uses less digits than its factorization.

381740810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5390.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 381740810 is about 19538.1885035435. The cubic root of 381740810 is about 725.4200087134.

Adding to 381740810 its reverse (18047183), we get a palindrome (399787993).

The spelling of 381740810 in words is "three hundred eighty-one million, seven hundred forty thousand, eight hundred ten".