74207942 has 4 divisors (see below), whose sum is σ = 111311916. Its totient is φ = 37103970.

The previous prime is 74207849. The next prime is 74207989. The reversal of 74207942 is 24970247.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24970247 = 29 ⋅861043.

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, 18551984 + ... + 18551987.

It is an arithmetic number, because the mean of its divisors is an integer number (27827979).

Almost surely, 2^74207942 is an apocalyptic number.

74207942 is a deficient number, since it is larger than the sum of its proper divisors (37103974).

74207942 is a wasteful number, since it uses less digits than its factorization.

74207942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37103973.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 74207942 is about 8614.4031714333. The cubic root of 74207942 is about 420.2265255725.

The spelling of 74207942 in words is "seventy-four million, two hundred seven thousand, nine hundred forty-two".