72726452 has 24 divisors (see below), whose sum is σ = 135676800. Its totient is φ = 34010496.

The previous prime is 72726449. The next prime is 72726481. The reversal of 72726452 is 25462727.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53 + ... + 12060.

It is an arithmetic number, because the mean of its divisors is an integer number (5653200).

Almost surely, 2^72726452 is an apocalyptic number.

It is an amenable number.

72726452 is a deficient number, since it is larger than the sum of its proper divisors (62950348).

72726452 is a wasteful number, since it uses less digits than its factorization.

72726452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12215 (or 12213 counting only the distinct ones).

The product of its digits is 47040, while the sum is 35.

The square root of 72726452 is about 8527.9805346870. The cubic root of 72726452 is about 417.4112343109.

The spelling of 72726452 in words is "seventy-two million, seven hundred twenty-six thousand, four hundred fifty-two".