1797241680 has 120 divisors (see below), whose sum is σ = 6500057928. Its totient is φ = 442395648.

The previous prime is 1797241627. The next prime is 1797241727. The reversal of 1797241680 is 861427971.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 397284624 + 1399957056 = 19932^2 + 37416^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86647 + ... + 105366.

Almost surely, 2^1797241680 is an apocalyptic number.

1797241680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1797241680 is an abundant number, since it is smaller than the sum of its proper divisors (4702816248).

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

1797241680 is a wasteful number, since it uses less digits than its factorization.

1797241680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192045 (or 192036 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 1797241680 is about 42393.8872952222. The cubic root of 1797241680 is about 1215.8187236988.

The spelling of 1797241680 in words is "one billion, seven hundred ninety-seven million, two hundred forty-one thousand, six hundred eighty".