361800440 has 16 divisors (see below), whose sum is σ = 814051080. Its totient is φ = 144720160.

The previous prime is 361800431. The next prime is 361800463. The reversal of 361800440 is 44008163.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 4522466 + ... + 4522545.

Almost surely, 2^361800440 is an apocalyptic number.

It is an amenable number.

361800440 is an abundant number, since it is smaller than the sum of its proper divisors (452250640).

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

361800440 is a wasteful number, since it uses less digits than its factorization.

361800440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9045022 (or 9045018 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 361800440 is about 19021.0525471121. The cubic root of 361800440 is about 712.5626102772.

The spelling of 361800440 in words is "three hundred sixty-one million, eight hundred thousand, four hundred forty".