74000398 has 4 divisors (see below), whose sum is σ = 111000600. Its totient is φ = 37000198.

The previous prime is 74000387. The next prime is 74000417. The reversal of 74000398 is 89300047.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18500098 + ... + 18500101.

It is an arithmetic number, because the mean of its divisors is an integer number (27750150).

Almost surely, 2^74000398 is an apocalyptic number.

74000398 is a deficient number, since it is larger than the sum of its proper divisors (37000202).

74000398 is a wasteful number, since it uses less digits than its factorization.

74000398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37000201.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 74000398 is about 8602.3484002916. The cubic root of 74000398 is about 419.8343980542.

It can be divided in two parts, 7400039 and 8, that added together give a palindrome (7400047).

The spelling of 74000398 in words is "seventy-four million, three hundred ninety-eight", and thus it is an aban number.