72466428 has 24 divisors (see below), whose sum is σ = 169322832. Its totient is φ = 24121984.

The previous prime is 72466403. The next prime is 72466451. The reversal of 72466428 is 82466427.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5776 + ... + 13352.

It is an arithmetic number, because the mean of its divisors is an integer number (7055118).

Almost surely, 2^72466428 is an apocalyptic number.

It is an amenable number.

72466428 is an abundant number, since it is smaller than the sum of its proper divisors (96856404).

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

72466428 is a wasteful number, since it uses less digits than its factorization.

72466428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8381 (or 8379 counting only the distinct ones).

The product of its digits is 129024, while the sum is 39.

The square root of 72466428 is about 8512.7215389674. The cubic root of 72466428 is about 416.9131736713.

Subtracting 72466428 from its reverse (82466427), we obtain a palindrome (9999999).

The spelling of 72466428 in words is "seventy-two million, four hundred sixty-six thousand, four hundred twenty-eight".