203940753604 has 27 divisors (see below), whose sum is σ = 415177976493. Its totient is φ = 87400470528.

The previous prime is 203940753581. The next prime is 203940753607. The reversal of 203940753604 is 406357049302.

The square root of 203940753604 is 451598.

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., 52812636100 + 151128117504 = 229810^2 + 388752^2 .

It is not an unprimeable number, because it can be changed into a prime (203940753607) 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, 6306244 + ... + 6338500.

Almost surely, 2^203940753604 is an apocalyptic number.

203940753604 is the 451598-th square number.

It is an amenable number.

203940753604 is an abundant number, since it is smaller than the sum of its proper divisors (211237222889).

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

203940753604 is an frugal number, since it uses more digits than its factorization.

203940753604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64532 (or 32266 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 203940753604 in words is "two hundred three billion, nine hundred forty million, seven hundred fifty-three thousand, six hundred four".