74266690 has 8 divisors (see below), whose sum is σ = 133680060. Its totient is φ = 29706672.

The previous prime is 74266631. The next prime is 74266691. The reversal of 74266690 is 9666247.

It can be written as a sum of positive squares in 2 ways, for example, as 68376361 + 5890329 = 8269^2 + 2427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×74266690² = 11031082487112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74266691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3713325 + ... + 3713344.

Almost surely, 2^74266690 is an apocalyptic number.

74266690 is a deficient number, since it is larger than the sum of its proper divisors (59413370).

74266690 is a wasteful number, since it uses less digits than its factorization.

74266690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7426676.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 74266690 is about 8617.8123674167. The cubic root of 74266690 is about 420.3373895194.

The spelling of 74266690 in words is "seventy-four million, two hundred sixty-six thousand, six hundred ninety".