74505726 has 48 divisors (see below), whose sum is σ = 171325440. Its totient is φ = 23334480.

The previous prime is 74505719. The next prime is 74505749. The reversal of 74505726 is 62750547.

It is a super-2 number, since 2×74505726² = 11102206413574152, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 43971 + ... + 45633.

It is an arithmetic number, because the mean of its divisors is an integer number (3569280).

Almost surely, 2^74505726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74505726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85662720).

74505726 is an abundant number, since it is smaller than the sum of its proper divisors (96819714).

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

74505726 is a wasteful number, since it uses less digits than its factorization.

74505726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821 (or 1818 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 74505726 is about 8631.6699427168. The cubic root of 74505726 is about 420.7878748488.

The spelling of 74505726 in words is "seventy-four million, five hundred five thousand, seven hundred twenty-six".