203940360072 has 24 divisors (see below), whose sum is σ = 552338475390. Its totient is φ = 67980120000.

The previous prime is 203940360047. The next prime is 203940360077. The reversal of 203940360072 is 270063049302.

It is a happy number.

203940360072 is a `hidden beast` number, since 2 + 0 + 3 + 9 + 40 + 3 + 600 + 7 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 110374115076 + 93566244996 = 332226^2 + 305886^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (203940360077) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1416252429 + ... + 1416252572.

Almost surely, 2^203940360072 is an apocalyptic number.

It is an amenable number.

203940360072 is an abundant number, since it is smaller than the sum of its proper divisors (348398115318).

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

203940360072 is a wasteful number, since it uses less digits than its factorization.

203940360072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832505013 (or 2832505006 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The spelling of 203940360072 in words is "two hundred three billion, nine hundred forty million, three hundred sixty thousand, seventy-two".