202490797320 has 128 divisors (see below), whose sum is σ = 771393542400. Its totient is φ = 46283609088.

The previous prime is 202490797309. The next prime is 202490797351. The reversal of 202490797320 is 23797094202.

202490797320 is a `hidden beast` number, since 2 + 0 + 2 + 490 + 79 + 73 + 20 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13384689 + ... + 13399808.

It is an arithmetic number, because the mean of its divisors is an integer number (6026512050).

Almost surely, 2^202490797320 is an apocalyptic number.

202490797320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202490797320 is an abundant number, since it is smaller than the sum of its proper divisors (568902745080).

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

202490797320 is a wasteful number, since it uses less digits than its factorization.

202490797320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26784524 (or 26784514 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 202490797320 in words is "two hundred two billion, four hundred ninety million, seven hundred ninety-seven thousand, three hundred twenty".