74339286 has 48 divisors (see below), whose sum is σ = 179368704. Its totient is φ = 20117808.

The previous prime is 74339269. The next prime is 74339357. The reversal of 74339286 is 68293347.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12711 + ... + 17613.

It is an arithmetic number, because the mean of its divisors is an integer number (3736848).

Almost surely, 2^74339286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74339286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89684352).

74339286 is an abundant number, since it is smaller than the sum of its proper divisors (105029418).

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

74339286 is a wasteful number, since it uses less digits than its factorization.

74339286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4953 (or 4934 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 74339286 is about 8622.0233124250. The cubic root of 74339286 is about 420.4743054357.

The spelling of 74339286 in words is "seventy-four million, three hundred thirty-nine thousand, two hundred eighty-six".