6422724 has 108 divisors (see below), whose sum is σ = 20665008. Its totient is φ = 1663200.

The previous prime is 6422711. The next prime is 6422729. The reversal of 6422724 is 4272246.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (6422729) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19239 + ... + 19569.

Almost surely, 2^6422724 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 6422724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10332504).

6422724 is an abundant number, since it is smaller than the sum of its proper divisors (14242284).

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

6422724 is a wasteful number, since it uses less digits than its factorization.

6422724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 354 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 6422724 is about 2534.3093733797. The cubic root of 6422724 is about 185.8830343356.

The spelling of 6422724 in words is "six million, four hundred twenty-two thousand, seven hundred twenty-four".