72297150 has 48 divisors (see below), whose sum is σ = 181488384. Its totient is φ = 19043680.

The previous prime is 72297143. The next prime is 72297151. The reversal of 72297150 is 5179227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72297151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9547 + ... + 15353.

It is an arithmetic number, because the mean of its divisors is an integer number (3781008).

Almost surely, 2^72297150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72297150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90744192).

72297150 is an abundant number, since it is smaller than the sum of its proper divisors (109191234).

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

72297150 is a wasteful number, since it uses less digits than its factorization.

72297150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5905 (or 5900 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 72297150 is about 8502.7730770614. The cubic root of 72297150 is about 416.5882910361.

The spelling of 72297150 in words is "seventy-two million, two hundred ninety-seven thousand, one hundred fifty".