1990830697024 has 63 divisors (see below), whose sum is σ = 4278134881737. Its totient is φ = 918777210624.

The previous prime is 1990830696997. The next prime is 1990830697027. The reversal of 1990830697024 is 4207960380991.

The square root of 1990830697024 is 1410968.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 294501582400 + 1696329114624 = 542680^2 + 1302432^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1990830697024.

It is not an unprimeable number, because it can be changed into a prime (1990830697027) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 146733889 + ... + 146747455.

Almost surely, 2^{1990830697024} is an apocalyptic number.

1990830697024 is the 1410968-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1990830697024

1990830697024 is an abundant number, since it is smaller than the sum of its proper divisors (2287304184713).

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

1990830697024 is an frugal number, since it uses more digits than its factorization.

1990830697024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27172 (or 13582 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 1990830697024 in words is "one trillion, nine hundred ninety billion, eight hundred thirty million, six hundred ninety-seven thousand, twenty-four".