74142936 has 96 divisors (see below), whose sum is σ = 231198240. Its totient is φ = 21026304.

The previous prime is 74142911. The next prime is 74142947. The reversal of 74142936 is 63924147.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 74142936.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 78660 + ... + 79596.

It is an arithmetic number, because the mean of its divisors is an integer number (2408315).

Almost surely, 2^74142936 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 74142936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115599120).

74142936 is an abundant number, since it is smaller than the sum of its proper divisors (157055304).

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

74142936 is a wasteful number, since it uses less digits than its factorization.

74142936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113 (or 1106 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 74142936 is about 8610.6292452991. The cubic root of 74142936 is about 420.1037838762.

It can be divided in two parts, 74142 and 936, that added together give a triangular number (75078 = T₃₈₇).

The spelling of 74142936 in words is "seventy-four million, one hundred forty-two thousand, nine hundred thirty-six".