32426240 has 216 divisors, whose sum is σ = 100662912. Its totient is φ = 9891840.

The previous prime is 32426239. The next prime is 32426249. The reversal of 32426240 is 4262423.

It is a super-2 number, since 2×32426240² = 2102922081075200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32426249) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 689897 + ... + 689943.

It is an arithmetic number, because the mean of its divisors is an integer number (466032).

Almost surely, 2^32426240 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 32426240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50331456).

32426240 is an abundant number, since it is smaller than the sum of its proper divisors (68236672).

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

32426240 is a wasteful number, since it uses less digits than its factorization.

32426240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 32426240 is about 5694.4042708610. The cubic root of 32426240 is about 318.8836097568.

Adding to 32426240 its reverse (4262423), we get a palindrome (36688663).

The spelling of 32426240 in words is "thirty-two million, four hundred twenty-six thousand, two hundred forty".