74842812 has 96 divisors (see below), whose sum is σ = 214824960. Its totient is φ = 22343040.

The previous prime is 74842799. The next prime is 74842813. The reversal of 74842812 is 21824847.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74842813) 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, 86293 + ... + 87155.

It is an arithmetic number, because the mean of its divisors is an integer number (2237760).

Almost surely, 2^74842812 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 74842812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107412480).

74842812 is an abundant number, since it is smaller than the sum of its proper divisors (139982148).

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

74842812 is a wasteful number, since it uses less digits than its factorization.

74842812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960 (or 952 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 74842812 is about 8651.1740243738. The cubic root of 74842812 is about 421.4215099349.

It can be divided in two parts, 7484 and 2812, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 74842812 in words is "seventy-four million, eight hundred forty-two thousand, eight hundred twelve".