74473656 has 48 divisors (see below), whose sum is σ = 192443400. Its totient is φ = 24016320.

The previous prime is 74473643. The next prime is 74473657. The reversal of 74473656 is 65637447.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74473657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21450 + ... + 24678.

Almost surely, 2^74473656 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 74473656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96221700).

74473656 is an abundant number, since it is smaller than the sum of its proper divisors (117969744).

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

74473656 is a wasteful number, since it uses less digits than its factorization.

74473656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300 (or 3265 counting only the distinct ones).

The product of its digits is 423360, while the sum is 42.

The square root of 74473656 is about 8629.8120489383. The cubic root of 74473656 is about 420.7274920007.

The spelling of 74473656 in words is "seventy-four million, four hundred seventy-three thousand, six hundred fifty-six".