72458122 has 8 divisors (see below), whose sum is σ = 118567872. Its totient is φ = 32935500.

The previous prime is 72458093. The next prime is 72458147. The reversal of 72458122 is 22185427.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1646754 + ... + 1646797.

It is an arithmetic number, because the mean of its divisors is an integer number (14820984).

Almost surely, 2^72458122 is an apocalyptic number.

72458122 is a deficient number, since it is larger than the sum of its proper divisors (46109750).

72458122 is a wasteful number, since it uses less digits than its factorization.

72458122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3293564.

The product of its digits is 8960, while the sum is 31.

The square root of 72458122 is about 8512.2336669055. The cubic root of 72458122 is about 416.8972443956.

The spelling of 72458122 in words is "seventy-two million, four hundred fifty-eight thousand, one hundred twenty-two".