74147320 has 32 divisors (see below), whose sum is σ = 179665920. Its totient is φ = 27377280.

The previous prime is 74147273. The next prime is 74147321. The reversal of 74147320 is 2374147.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74147321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70776 + ... + 71815.

It is an arithmetic number, because the mean of its divisors is an integer number (5614560).

Almost surely, 2^74147320 is an apocalyptic number.

It is an amenable number.

74147320 is an abundant number, since it is smaller than the sum of its proper divisors (105518600).

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

74147320 is a wasteful number, since it uses less digits than its factorization.

74147320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142615 (or 142611 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 74147320 is about 8610.8838106201. The cubic root of 74147320 is about 420.1120638230.

The spelling of 74147320 in words is "seventy-four million, one hundred forty-seven thousand, three hundred twenty".