74043866 has 16 divisors (see below), whose sum is σ = 119903784. Its totient is φ = 34089984.

The previous prime is 74043859. The next prime is 74043881. The reversal of 74043866 is 66834047.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59059225 + 14984641 = 7685^2 + 3871^2 .

It is a Curzon number.

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, 7970 + ... + 14546.

Almost surely, 2^74043866 is an apocalyptic number.

74043866 is a deficient number, since it is larger than the sum of its proper divisors (45859918).

74043866 is a wasteful number, since it uses less digits than its factorization.

74043866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7025.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 74043866 is about 8604.8745487659. The cubic root of 74043866 is about 419.9165858534.

The spelling of 74043866 in words is "seventy-four million, forty-three thousand, eight hundred sixty-six".