424142236 has 36 divisors (see below), whose sum is σ = 867327048. Its totient is φ = 180955488.

The previous prime is 424142221. The next prime is 424142261. The reversal of 424142236 is 632241424.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39726 + ... + 49258.

It is an arithmetic number, because the mean of its divisors is an integer number (24092418).

Almost surely, 2^424142236 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 424142236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433663524).

424142236 is an abundant number, since it is smaller than the sum of its proper divisors (443184812).

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

424142236 is a wasteful number, since it uses less digits than its factorization.

424142236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9778 (or 9769 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 424142236 is about 20594.7137877660. The cubic root of 424142236 is about 751.3411475939.

The spelling of 424142236 in words is "four hundred twenty-four million, one hundred forty-two thousand, two hundred thirty-six".