240164684356 has 9 divisors (see below), whose sum is σ = 420289912861. Its totient is φ = 120081852112.

The previous prime is 240164684351. The next prime is 240164684363. The reversal of 240164684356 is 653486461042.

The square root of 240164684356 is 490066.

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., 213915500100 + 26249184256 = 462510^2 + 162016^2 .

It is a super-2 number, since 2×240164684356² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240164684351) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 857616 + ... + 1102648.

Almost surely, 2^240164684356 is an apocalyptic number.

240164684356 is the 490066-th square number.

It is an amenable number.

240164684356 is a deficient number, since it is larger than the sum of its proper divisors (180125228505).

240164684356 is an frugal number, since it uses more digits than its factorization.

240164684356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490070 (or 245035 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 49.

Multiplying 240164684356 by its sum of digits (49), we get a square (11768069533444 = 3430462²).

The spelling of 240164684356 in words is "two hundred forty billion, one hundred sixty-four million, six hundred eighty-four thousand, three hundred fifty-six".