74135936 has 64 divisors (see below), whose sum is σ = 170731680. Its totient is φ = 31408128.

The previous prime is 74135927. The next prime is 74135947. The reversal of 74135936 is 63953147.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×74135936² = 10992274013192192, 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 74135936.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 86486 + ... + 87338.

Almost surely, 2^74135936 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 74135936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85365840).

74135936 is an abundant number, since it is smaller than the sum of its proper divisors (96595744).

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

74135936 is an equidigital number, since it uses as much as digits as its factorization.

74135936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971 (or 959 counting only the distinct ones).

The product of its digits is 68040, while the sum is 38.

The square root of 74135936 is about 8610.2227613460. Note that the first 3 decimals coincide. The cubic root of 74135936 is about 420.0905624816.

The spelling of 74135936 in words is "seventy-four million, one hundred thirty-five thousand, nine hundred thirty-six".