381359240 has 32 divisors (see below), whose sum is σ = 859141080. Its totient is φ = 152351232.

The previous prime is 381359219. The next prime is 381359257. The reversal of 381359240 is 42953183.

It can be written as a sum of positive squares in 4 ways, for example, as 286218724 + 95140516 = 16918^2 + 9754^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 381359240.

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 7 ways as a sum of consecutive naturals, for example, 28532 + ... + 39708.

Almost surely, 2^381359240 is an apocalyptic number.

It is an amenable number.

381359240 is an abundant number, since it is smaller than the sum of its proper divisors (477781840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381359240 is a wasteful number, since it uses less digits than its factorization.

381359240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12041 (or 12037 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 381359240 is about 19528.4213391662. The cubic root of 381359240 is about 725.1782296654.

The spelling of 381359240 in words is "three hundred eighty-one million, three hundred fifty-nine thousand, two hundred forty".