74194164 has 144 divisors (see below), whose sum is σ = 222747840. Its totient is φ = 21176640.

The previous prime is 74194163. The next prime is 74194181. The reversal of 74194164 is 46149147.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74194163) 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 47 ways as a sum of consecutive naturals, for example, 428782 + ... + 428954.

It is an arithmetic number, because the mean of its divisors is an integer number (1546860).

Almost surely, 2^74194164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74194164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111373920).

74194164 is an abundant number, since it is smaller than the sum of its proper divisors (148553676).

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

74194164 is a wasteful number, since it uses less digits than its factorization.

74194164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 208 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 74194164 is about 8613.6034271378. The cubic root of 74194164 is about 420.2005164990.

The spelling of 74194164 in words is "seventy-four million, one hundred ninety-four thousand, one hundred sixty-four".