74077812 has 36 divisors (see below), whose sum is σ = 189012096. Its totient is φ = 24460560.

The previous prime is 74077793. The next prime is 74077819. The reversal of 74077812 is 21877047.

It is a tau number, because it is divible by the number of its divisors (36).

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 (74077819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5764 + ... + 13467.

It is an arithmetic number, because the mean of its divisors is an integer number (5250336).

Almost surely, 2^74077812 is an apocalyptic number.

It is an amenable number.

74077812 is an abundant number, since it is smaller than the sum of its proper divisors (114934284).

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

74077812 is a wasteful number, since it uses less digits than its factorization.

74077812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19348 (or 19343 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 74077812 is about 8606.8468093722. The cubic root of 74077812 is about 419.9807474168.

The spelling of 74077812 in words is "seventy-four million, seventy-seven thousand, eight hundred twelve".