74170398 has 8 divisors (see below), whose sum is σ = 148340808. Its totient is φ = 24723464.

The previous prime is 74170391. The next prime is 74170441. The reversal of 74170398 is 89307147.

It is a sphenic number, since it is the product of 3 distinct primes.

74170398 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74170391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6180861 + ... + 6180872.

It is an arithmetic number, because the mean of its divisors is an integer number (18542601).

Almost surely, 2^74170398 is an apocalyptic number.

74170398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74170398 is a wasteful number, since it uses less digits than its factorization.

74170398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12361738.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 74170398 is about 8612.2237546408. The cubic root of 74170398 is about 420.1556452611.

The spelling of 74170398 in words is "seventy-four million, one hundred seventy thousand, three hundred ninety-eight".