74169664 has 28 divisors (see below), whose sum is σ = 153582624. Its totient is φ = 35471744.

The previous prime is 74169661. The next prime is 74169671. The reversal of 74169664 is 46696147.

It is a super-2 number, since 2×74169664² = 11002278115745792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74169664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74169661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23722 + ... + 26665.

Almost surely, 2^74169664 is an apocalyptic number.

It is an amenable number.

74169664 is an abundant number, since it is smaller than the sum of its proper divisors (79412960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74169664 is a wasteful number, since it uses less digits than its factorization.

74169664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50422 (or 50412 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 74169664 is about 8612.1811406867. The cubic root of 74169664 is about 420.1542592847.

The spelling of 74169664 in words is "seventy-four million, one hundred sixty-nine thousand, six hundred sixty-four".