72397150 has 48 divisors (see below), whose sum is σ = 155168640. Its totient is φ = 24616800.

The previous prime is 72397133. The next prime is 72397153. The reversal of 72397150 is 5179327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72397153) 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, 45061 + ... + 46639.

It is an arithmetic number, because the mean of its divisors is an integer number (3232680).

Almost surely, 2^72397150 is an apocalyptic number.

72397150 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72397150 is an abundant number, since it is smaller than the sum of its proper divisors (82771490).

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

72397150 is a wasteful number, since it uses less digits than its factorization.

72397150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729 (or 1724 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 72397150 is about 8508.6514795237. The cubic root of 72397150 is about 416.7802747986.

The spelling of 72397150 in words is "seventy-two million, three hundred ninety-seven thousand, one hundred fifty".