74851816 has 32 divisors (see below), whose sum is σ = 160037640. Its totient is φ = 32514048.

The previous prime is 74851801. The next prime is 74851817. The reversal of 74851816 is 61815847.

It can be written as a sum of positive squares in 4 ways, for example, as 69789316 + 5062500 = 8354^2 + 2250^2 .

It is not an unprimeable number, because it can be changed into a prime (74851817) 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 7 ways as a sum of consecutive naturals, for example, 19401 + ... + 22936.

Almost surely, 2^74851816 is an apocalyptic number.

It is an amenable number.

74851816 is an abundant number, since it is smaller than the sum of its proper divisors (85185824).

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

74851816 is a wasteful number, since it uses less digits than its factorization.

74851816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42373 (or 42369 counting only the distinct ones).

The product of its digits is 53760, while the sum is 40.

The square root of 74851816 is about 8651.6944005206. The cubic root of 74851816 is about 421.4384090288.

The spelling of 74851816 in words is "seventy-four million, eight hundred fifty-one thousand, eight hundred sixteen".