74297438 has 4 divisors (see below), whose sum is σ = 111446160. Its totient is φ = 37148718.

The previous prime is 74297417. The next prime is 74297471. The reversal of 74297438 is 83479247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83479247 = 173 ⋅482539.

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, 18574358 + ... + 18574361.

It is an arithmetic number, because the mean of its divisors is an integer number (27861540).

Almost surely, 2^74297438 is an apocalyptic number.

74297438 is a deficient number, since it is larger than the sum of its proper divisors (37148722).

74297438 is a wasteful number, since it uses less digits than its factorization.

74297438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37148721.

The product of its digits is 338688, while the sum is 44.

The square root of 74297438 is about 8619.5961622341. The cubic root of 74297438 is about 420.3953910756.

The spelling of 74297438 in words is "seventy-four million, two hundred ninety-seven thousand, four hundred thirty-eight".