3909147242 has 48 divisors (see below), whose sum is σ = 7932656256. Its totient is φ = 1405879200.

The previous prime is 3909147167. The next prime is 3909147259. The reversal of 3909147242 is 2427419093.

It is a self number, because there is not a number n which added to its sum of digits gives 3909147242.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66734 + ... + 110777.

It is an arithmetic number, because the mean of its divisors is an integer number (165263672).

Almost surely, 2^3909147242 is an apocalyptic number.

3909147242 is an abundant number, since it is smaller than the sum of its proper divisors (4023509014).

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

3909147242 is a wasteful number, since it uses less digits than its factorization.

3909147242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177555 (or 177544 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 3909147242 is about 62523.1736398593. The cubic root of 3909147242 is about 1575.2905810712.

It can be divided in two parts, 3909 and 147242, that added together give a palindrome (151151).

The spelling of 3909147242 in words is "three billion, nine hundred nine million, one hundred forty-seven thousand, two hundred forty-two".