72425490 has 32 divisors (see below), whose sum is σ = 176207616. Its totient is φ = 19048320.

The previous prime is 72425477. The next prime is 72425497. The reversal of 72425490 is 9452427.

It is not an unprimeable number, because it can be changed into a prime (72425497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14346 + ... + 18725.

It is an arithmetic number, because the mean of its divisors is an integer number (5506488).

Almost surely, 2^72425490 is an apocalyptic number.

72425490 is an abundant number, since it is smaller than the sum of its proper divisors (103782126).

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

72425490 is a wasteful number, since it uses less digits than its factorization.

72425490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33154.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 72425490 is about 8510.3166803592. The cubic root of 72425490 is about 416.8346508438.

The spelling of 72425490 in words is "seventy-two million, four hundred twenty-five thousand, four hundred ninety".