74198020 has 24 divisors (see below), whose sum is σ = 167802264. Its totient is φ = 27396096.

The previous prime is 74198017. The next prime is 74198041. The reversal of 74198020 is 2089147.

It can be written as a sum of positive squares in 4 ways, for example, as 3873024 + 70324996 = 1968^2 + 8386^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142429 + ... + 142948.

It is an arithmetic number, because the mean of its divisors is an integer number (6991761).

Almost surely, 2^74198020 is an apocalyptic number.

It is an amenable number.

74198020 is an abundant number, since it is smaller than the sum of its proper divisors (93604244).

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

74198020 is a wasteful number, since it uses less digits than its factorization.

74198020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285399 (or 285397 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 74198020 is about 8613.8272562201. The cubic root of 74198020 is about 420.2077958906.

The spelling of 74198020 in words is "seventy-four million, one hundred ninety-eight thousand, twenty".