74801232 has 210 divisors, whose sum is σ = 243347706. Its totient is φ = 22239360.

The previous prime is 74801231. The next prime is 74801249. The reversal of 74801232 is 23210847.

It can be written as a sum of positive squares in only one way, i.e., 69155856 + 5645376 = 8316^2 + 2376^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 74801196 and 74801205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74801231) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 1411318 + ... + 1411370.

Almost surely, 2^74801232 is an apocalyptic number.

74801232 is a gapful number since it is divisible by the number (72) 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 74801232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121673853).

74801232 is an abundant number, since it is smaller than the sum of its proper divisors (168546474).

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

74801232 is a wasteful number, since it uses less digits than its factorization.

74801232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 74801232 is about 8648.7705484653. The cubic root of 74801232 is about 421.3434532188.

The spelling of 74801232 in words is "seventy-four million, eight hundred one thousand, two hundred thirty-two".