74423448 has 160 divisors (see below), whose sum is σ = 232871760. Its totient is φ = 22014720.

The previous prime is 74423443. The next prime is 74423449. The reversal of 74423448 is 84432447.

It is a happy number.

It is a super-2 number, since 2×74423448² = 11077699224417408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74423443) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 377686 + ... + 377882.

Almost surely, 2^74423448 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 74423448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116435880).

74423448 is an abundant number, since it is smaller than the sum of its proper divisors (158448312).

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

74423448 is a wasteful number, since it uses less digits than its factorization.

74423448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 266 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 74423448 is about 8626.9025727662. The cubic root of 74423448 is about 420.6329232817.

The spelling of 74423448 in words is "seventy-four million, four hundred twenty-three thousand, four hundred forty-eight".