72202970 has 24 divisors (see below), whose sum is σ = 151185204. Its totient is φ = 24755136.

The previous prime is 72202967. The next prime is 72202979. The reversal of 72202970 is 7920227.

It can be written as a sum of positive squares in 2 ways, for example, as 62236321 + 9966649 = 7889^2 + 3157^2 .

It is not an unprimeable number, because it can be changed into a prime (72202979) 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, 73187 + ... + 74166.

Almost surely, 2^72202970 is an apocalyptic number.

72202970 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72202970 is an abundant number, since it is smaller than the sum of its proper divisors (78982234).

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

72202970 is a wasteful number, since it uses less digits than its factorization.

72202970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147374 (or 147367 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 72202970 is about 8497.2330790676. The cubic root of 72202970 is about 416.4073187841.

The spelling of 72202970 in words is "seventy-two million, two hundred two thousand, nine hundred seventy".