810001344 has 56 divisors (see below), whose sum is σ = 2147011200. Its totient is φ = 269511424.

The previous prime is 810001343. The next prime is 810001351. The reversal of 810001344 is 443100018.

It is a super-2 number, since 2×810001344² = 1312204354563612672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 810001344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810001343) 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, 111487 + ... + 118529.

Almost surely, 2^810001344 is an apocalyptic number.

It is an amenable number.

810001344 is an abundant number, since it is smaller than the sum of its proper divisors (1337009856).

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

810001344 is a wasteful number, since it uses less digits than its factorization.

810001344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7657 (or 7647 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 810001344 is about 28460.5225531788. The cubic root of 810001344 is about 932.1702673563.

The spelling of 810001344 in words is "eight hundred ten million, one thousand, three hundred forty-four".