1800097056 has 36 divisors (see below), whose sum is σ = 5119026822. Its totient is φ = 600032256.

The previous prime is 1800097049. The next prime is 1800097067. The reversal of 1800097056 is 6507900081.

It can be written as a sum of positive squares in only one way, i.e., 1671501456 + 128595600 = 40884^2 + 11340^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1800097056² = 6480698822039734272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1800097056.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3124881 + ... + 3125456.

Almost surely, 2^1800097056 is an apocalyptic number.

1800097056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1800097056 is an abundant number, since it is smaller than the sum of its proper divisors (3318929766).

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

1800097056 is a wasteful number, since it uses less digits than its factorization.

1800097056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6250353 (or 6250342 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 1800097056 is about 42427.5506717039. The cubic root of 1800097056 is about 1216.4622622105.

The spelling of 1800097056 in words is "one billion, eight hundred million, ninety-seven thousand, fifty-six".