4242140 has 48 divisors (see below), whose sum is σ = 10299072. Its totient is φ = 1437696.

The previous prime is 4242137. The next prime is 4242167. The reversal of 4242140 is 412424.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21884 + ... + 22076.

It is an arithmetic number, because the mean of its divisors is an integer number (214564).

Almost surely, 2^4242140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4242140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5149536).

4242140 is an abundant number, since it is smaller than the sum of its proper divisors (6056932).

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

4242140 is a wasteful number, since it uses less digits than its factorization.

4242140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 4242140 is about 2059.6456005828. The cubic root of 4242140 is about 161.8806721725.

Adding to 4242140 its reverse (412424), we get a palindrome (4654564).

The spelling of 4242140 in words is "four million, two hundred forty-two thousand, one hundred forty".