7642236 has 72 divisors (see below), whose sum is σ = 21316176. Its totient is φ = 2123520.

The previous prime is 7642183. The next prime is 7642241. The reversal of 7642236 is 6322467.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23950 + ... + 24266.

It is an arithmetic number, because the mean of its divisors is an integer number (296058).

Almost surely, 2^7642236 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 7642236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10658088).

7642236 is an abundant number, since it is smaller than the sum of its proper divisors (13673940).

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

7642236 is a wasteful number, since it uses less digits than its factorization.

7642236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 370 counting only the distinct ones).

The product of its digits is 12096, while the sum is 30.

The square root of 7642236 is about 2764.4594408311. The cubic root of 7642236 is about 196.9730523921.

The spelling of 7642236 in words is "seven million, six hundred forty-two thousand, two hundred thirty-six".