8742405234 has 32 divisors (see below), whose sum is σ = 18014918400. Its totient is φ = 2826881792.

The previous prime is 8742405211. The next prime is 8742405247. The reversal of 8742405234 is 4325042478.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8742405192 and 8742405201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105309 + ... + 169040.

It is an arithmetic number, because the mean of its divisors is an integer number (562966200).

Almost surely, 2^8742405234 is an apocalyptic number.

8742405234 is an abundant number, since it is smaller than the sum of its proper divisors (9272513166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8742405234 is a wasteful number, since it uses less digits than its factorization.

8742405234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274514.

The product of its (nonzero) digits is 215040, while the sum is 39.

The square root of 8742405234 is about 93500.8301246572. The cubic root of 8742405234 is about 2060.0462830900.

The spelling of 8742405234 in words is "eight billion, seven hundred forty-two million, four hundred five thousand, two hundred thirty-four".