202180072 has 16 divisors (see below), whose sum is σ = 379533060. Its totient is φ = 100971264.

The previous prime is 202180021. The next prime is 202180073. The reversal of 202180072 is 270081202.

It can be written as a sum of positive squares in 2 ways, for example, as 157904356 + 44275716 = 12566^2 + 6654^2 .

It is not an unprimeable number, because it can be changed into a prime (202180073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7393 + ... + 21424.

Almost surely, 2^202180072 is an apocalyptic number.

It is an amenable number.

202180072 is a deficient number, since it is larger than the sum of its proper divisors (177352988).

202180072 is a wasteful number, since it uses less digits than its factorization.

202180072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29700 (or 29696 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 202180072 is about 14219.0039032275. The cubic root of 202180072 is about 586.9207298923.

The spelling of 202180072 in words is "two hundred two million, one hundred eighty thousand, seventy-two".