8424742 has 4 divisors (see below), whose sum is σ = 12637116. Its totient is φ = 4212370.

The previous prime is 8424727. The next prime is 8424763. The reversal of 8424742 is 2474248.

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

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, 2106184 + ... + 2106187.

It is an arithmetic number, because the mean of its divisors is an integer number (3159279).

Almost surely, 2^8424742 is an apocalyptic number.

8424742 is a deficient number, since it is larger than the sum of its proper divisors (4212374).

8424742 is a wasteful number, since it uses less digits than its factorization.

8424742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212373.

The product of its digits is 14336, while the sum is 31.

The square root of 8424742 is about 2902.5406112577. The cubic root of 8424742 is about 203.4786604769.

The spelling of 8424742 in words is "eight million, four hundred twenty-four thousand, seven hundred forty-two".