74926720 has 128 divisors (see below), whose sum is σ = 202694400. Its totient is φ = 26234880.

The previous prime is 74926711. The next prime is 74926741. The reversal of 74926720 is 2762947.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×74926720² = 11228026739916800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74926720.

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, 203977 + ... + 204343.

It is an arithmetic number, because the mean of its divisors is an integer number (1583550).

Almost surely, 2^74926720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74926720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101347200).

74926720 is an abundant number, since it is smaller than the sum of its proper divisors (127767680).

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

74926720 is a wasteful number, since it uses less digits than its factorization.

74926720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 74926720 is about 8656.0221811176. The cubic root of 74926720 is about 421.5789395699.

The spelling of 74926720 in words is "seventy-four million, nine hundred twenty-six thousand, seven hundred twenty".