74475136 has 64 divisors (see below), whose sum is σ = 158140800. Its totient is φ = 34836480.

The previous prime is 74475133. The next prime is 74475139. The reversal of 74475136 is 63157447.

It is an interprime number because it is at equal distance from previous prime (74475133) and next prime (74475139).

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 74475095 and 74475104.

It is not an unprimeable number, because it can be changed into a prime (74475131) 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, 274681 + ... + 274951.

It is an arithmetic number, because the mean of its divisors is an integer number (2470950).

Almost surely, 2^74475136 is an apocalyptic number.

74475136 is a gapful number since it is divisible by the number (76) 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 74475136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79070400).

74475136 is an abundant number, since it is smaller than the sum of its proper divisors (83665664).

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

74475136 is a wasteful number, since it uses less digits than its factorization.

74475136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 405 counting only the distinct ones).

The product of its digits is 70560, while the sum is 37.

The square root of 74475136 is about 8629.8977977726. The cubic root of 74475136 is about 420.7302789932.

The spelling of 74475136 in words is "seventy-four million, four hundred seventy-five thousand, one hundred thirty-six".