74724468 has 96 divisors (see below), whose sum is σ = 219959040. Its totient is φ = 19215360.

The previous prime is 74724467. The next prime is 74724487. The reversal of 74724468 is 86442747.

74724468 is nontrivially palindromic in base 16.

It is a super-2 number, since 2×74724468² = 11167492235766048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74724467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43938 + ... + 45606.

It is an arithmetic number, because the mean of its divisors is an integer number (2291240).

Almost surely, 2^74724468 is an apocalyptic number.

74724468 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74724468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109979520).

74724468 is an abundant number, since it is smaller than the sum of its proper divisors (145234572).

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

74724468 is a wasteful number, since it uses less digits than its factorization.

74724468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737 (or 1735 counting only the distinct ones).

The product of its digits is 301056, while the sum is 42.

The square root of 74724468 is about 8644.3315531046. The cubic root of 74724468 is about 421.1992707478.

The spelling of 74724468 in words is "seventy-four million, seven hundred twenty-four thousand, four hundred sixty-eight".