72726510 has 32 divisors (see below), whose sum is σ = 184812192. Its totient is φ = 18252800.

The previous prime is 72726503. The next prime is 72726541. The reversal of 72726510 is 1562727.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 70791 + ... + 71810.

It is an arithmetic number, because the mean of its divisors is an integer number (5775381).

Almost surely, 2^72726510 is an apocalyptic number.

72726510 is an abundant number, since it is smaller than the sum of its proper divisors (112085682).

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

72726510 is a wasteful number, since it uses less digits than its factorization.

72726510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142628.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 72726510 is about 8527.9839352569. The cubic root of 72726510 is about 417.4113452739.

The spelling of 72726510 in words is "seventy-two million, seven hundred twenty-six thousand, five hundred ten".