72451230 has 32 divisors (see below), whose sum is σ = 175578624. Its totient is φ = 19131936.

The previous prime is 72451213. The next prime is 72451273. The reversal of 72451230 is 3215427.

It is a self number, because there is not a number n which added to its sum of digits gives 72451230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8634 + ... + 14813.

It is an arithmetic number, because the mean of its divisors is an integer number (5486832).

Almost surely, 2^72451230 is an apocalyptic number.

72451230 is an abundant number, since it is smaller than the sum of its proper divisors (103127394).

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

72451230 is a wasteful number, since it uses less digits than its factorization.

72451230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23560.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 72451230 is about 8511.8288281661. The cubic root of 72451230 is about 416.8840259699.

Adding to 72451230 its reverse (3215427), we get a palindrome (75666657).

The spelling of 72451230 in words is "seventy-two million, four hundred fifty-one thousand, two hundred thirty".