74490417 has 6 divisors (see below), whose sum is σ = 107597282. Its totient is φ = 49660272.

The previous prime is 74490401. The next prime is 74490457. The reversal of 74490417 is 71409447.

It can be written as a sum of positive squares in only one way, i.e., 70711281 + 3779136 = 8409^2 + 1944^2 .

It is not a de Polignac number, because 74490417 - 2⁴ = 74490401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74490457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4138348 + ... + 4138365.

Almost surely, 2^74490417 is an apocalyptic number.

It is an amenable number.

74490417 is a deficient number, since it is larger than the sum of its proper divisors (33106865).

74490417 is a wasteful number, since it uses less digits than its factorization.

74490417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8276719 (or 8276716 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 74490417 is about 8630.7831046783. The cubic root of 74490417 is about 420.7590525324.

The spelling of 74490417 in words is "seventy-four million, four hundred ninety thousand, four hundred seventeen".