74130012 has 96 divisors (see below), whose sum is σ = 218856960. Its totient is φ = 21479040.

The previous prime is 74130011. The next prime is 74130029. The reversal of 74130012 is 21003147.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74130011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25968 + ... + 28680.

It is an arithmetic number, because the mean of its divisors is an integer number (2279760).

Almost surely, 2^74130012 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 74130012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109428480).

74130012 is an abundant number, since it is smaller than the sum of its proper divisors (144726948).

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

74130012 is a wasteful number, since it uses less digits than its factorization.

74130012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760 (or 2752 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 74130012 is about 8609.8787447908. The cubic root of 74130012 is about 420.0793727541.

Adding to 74130012 its reverse (21003147), we get a palindrome (95133159).

The spelling of 74130012 in words is "seventy-four million, one hundred thirty thousand, twelve".