74870032 has 40 divisors (see below), whose sum is σ = 154330400. Its totient is φ = 35085312.

The previous prime is 74870017. The next prime is 74870039. The reversal of 74870032 is 23007847.

It is a junction number, because it is equal to n+sod(n) for n = 74869976 and 74870003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74870039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28219 + ... + 30757.

It is an arithmetic number, because the mean of its divisors is an integer number (3858260).

Almost surely, 2^74870032 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 74870032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77165200).

74870032 is an abundant number, since it is smaller than the sum of its proper divisors (79460368).

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

74870032 is a wasteful number, since it uses less digits than its factorization.

74870032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663 (or 2657 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 74870032 is about 8652.7470782405. The cubic root of 74870032 is about 421.4725934561.

Adding to 74870032 its reverse (23007847), we get a palindrome (97877879).

The spelling of 74870032 in words is "seventy-four million, eight hundred seventy thousand, thirty-two".