74251742 has 4 divisors (see below), whose sum is σ = 111377616. Its totient is φ = 37125870.

The previous prime is 74251703. The next prime is 74251757. The reversal of 74251742 is 24715247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24715247 = 113 ⋅218719.

It is a junction number, because it is equal to n+sod(n) for n = 74251699 and 74251708.

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, 18562934 + ... + 18562937.

It is an arithmetic number, because the mean of its divisors is an integer number (27844404).

Almost surely, 2^74251742 is an apocalyptic number.

74251742 is a deficient number, since it is larger than the sum of its proper divisors (37125874).

74251742 is a wasteful number, since it uses less digits than its factorization.

74251742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37125873.

The product of its digits is 15680, while the sum is 32.

The square root of 74251742 is about 8616.9450503064. The cubic root of 74251742 is about 420.3091865440.

Adding to 74251742 its reverse (24715247), we get a palindrome (98966989).

The spelling of 74251742 in words is "seventy-four million, two hundred fifty-one thousand, seven hundred forty-two".