74702269 has 4 divisors (see below), whose sum is σ = 74721820. Its totient is φ = 74682720.

The previous prime is 74702261. The next prime is 74702291. The reversal of 74702269 is 96220747.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37027225 + 37675044 = 6085^2 + 6138^2 .

It is a cyclic number.

It is not a de Polignac number, because 74702269 - 2³ = 74702261 is a prime.

It is a super-2 number, since 2×74702269² = 11160857987496722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74702261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1962 + ... + 12379.

It is an arithmetic number, because the mean of its divisors is an integer number (18680455).

Almost surely, 2^74702269 is an apocalyptic number.

It is an amenable number.

74702269 is a deficient number, since it is larger than the sum of its proper divisors (19551).

74702269 is a wasteful number, since it uses less digits than its factorization.

74702269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19550.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 74702269 is about 8643.0474371023. The cubic root of 74702269 is about 421.1575569293.

The spelling of 74702269 in words is "seventy-four million, seven hundred two thousand, two hundred sixty-nine".