8742942 has 24 divisors (see below), whose sum is σ = 20400744. Its totient is φ = 2690064.

The previous prime is 8742941. The next prime is 8742973. The reversal of 8742942 is 2492478.

It is a junction number, because it is equal to n+sod(n) for n = 8742897 and 8742906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8742941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18448 + ... + 18915.

It is an arithmetic number, because the mean of its divisors is an integer number (850031).

Almost surely, 2^8742942 is an apocalyptic number.

8742942 is an abundant number, since it is smaller than the sum of its proper divisors (11657802).

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

8742942 is a wasteful number, since it uses less digits than its factorization.

8742942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37384 (or 37381 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 8742942 is about 2956.8466311258. The cubic root of 8742942 is about 206.0088443119.

The spelling of 8742942 in words is "eight million, seven hundred forty-two thousand, nine hundred forty-two".