74238669 has 6 divisors (see below), whose sum is σ = 107233646. Its totient is φ = 49492440.

The previous prime is 74238667. The next prime is 74238673. The reversal of 74238669 is 96683247.

It can be written as a sum of positive squares in only one way, i.e., 68260644 + 5978025 = 8262^2 + 2445^2 .

It is not a de Polignac number, because 74238669 - 2¹ = 74238667 is a prime.

It is a super-2 number, since 2×74238669² = 11022759949783122, 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 (74238667) 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, 4124362 + ... + 4124379.

Almost surely, 2^74238669 is an apocalyptic number.

It is an amenable number.

74238669 is a deficient number, since it is larger than the sum of its proper divisors (32994977).

74238669 is a wasteful number, since it uses less digits than its factorization.

74238669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8248747 (or 8248744 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 74238669 is about 8616.1864534143. The cubic root of 74238669 is about 420.2845181014.

The spelling of 74238669 in words is "seventy-four million, two hundred thirty-eight thousand, six hundred sixty-nine".