39742284 has 24 divisors (see below), whose sum is σ = 94994928. Its totient is φ = 12924160.

The previous prime is 39742271. The next prime is 39742289. The reversal of 39742284 is 48224793.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (39742289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39897 + ... + 40880.

It is an arithmetic number, because the mean of its divisors is an integer number (3958122).

Almost surely, 2^39742284 is an apocalyptic number.

It is an amenable number.

39742284 is an abundant number, since it is smaller than the sum of its proper divisors (55252644).

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

39742284 is a wasteful number, since it uses less digits than its factorization.

39742284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80825 (or 80823 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 39742284 is about 6304.1481581575. The cubic root of 39742284 is about 341.2591260021.

The spelling of 39742284 in words is "thirty-nine million, seven hundred forty-two thousand, two hundred eighty-four".