74403306 has 64 divisors (see below), whose sum is σ = 170035200. Its totient is φ = 24109488.

The previous prime is 74403269. The next prime is 74403311. The reversal of 74403306 is 60330447.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 74403306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456381 + ... + 456543.

It is an arithmetic number, because the mean of its divisors is an integer number (2656800).

Almost surely, 2^74403306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74403306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85017600).

74403306 is an abundant number, since it is smaller than the sum of its proper divisors (95631894).

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

74403306 is a wasteful number, since it uses less digits than its factorization.

74403306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 74403306 is about 8625.7350991089. The cubic root of 74403306 is about 420.5949730881.

The spelling of 74403306 in words is "seventy-four million, four hundred three thousand, three hundred six".