74032218 has 40 divisors (see below), whose sum is σ = 178652628. Its totient is φ = 22778496.

The previous prime is 74032201. The next prime is 74032249. The reversal of 74032218 is 81223047.

It can be written as a sum of positive squares in 2 ways, for example, as 53538489 + 20493729 = 7317^2 + 4527^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 74032191 and 74032200.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15471 + ... + 19682.

Almost surely, 2^74032218 is an apocalyptic number.

74032218 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

74032218 is an abundant number, since it is smaller than the sum of its proper divisors (104620410).

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

74032218 is a wasteful number, since it uses less digits than its factorization.

74032218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35180 (or 35171 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 74032218 is about 8604.1976964735. The cubic root of 74032218 is about 419.8945653712.

The spelling of 74032218 in words is "seventy-four million, thirty-two thousand, two hundred eighteen".