202401972 has 36 divisors (see below), whose sum is σ = 518839776. Its totient is φ = 66516240.

The previous prime is 202401971. The next prime is 202402009. The reversal of 202401972 is 279104202.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202401971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37038 + ... + 42149.

It is an arithmetic number, because the mean of its divisors is an integer number (14412216).

Almost surely, 2^202401972 is an apocalyptic number.

It is an amenable number.

202401972 is an abundant number, since it is smaller than the sum of its proper divisors (316437804).

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

202401972 is a wasteful number, since it uses less digits than its factorization.

202401972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79268 (or 79263 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 202401972 is about 14226.8047009861. The cubic root of 202401972 is about 587.1353736846.

The spelling of 202401972 in words is "two hundred two million, four hundred one thousand, nine hundred seventy-two".