32240340 has 144 divisors (see below), whose sum is σ = 112432320. Its totient is φ = 7395840.

The previous prime is 32240323. The next prime is 32240389. The reversal of 32240340 is 4304223.

32240340 is a `hidden beast` number, since 322 + 4 + 0 + 340 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37192 + ... + 38048.

It is an arithmetic number, because the mean of its divisors is an integer number (780780).

Almost surely, 2^32240340 is an apocalyptic number.

32240340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32240340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56216160).

32240340 is an abundant number, since it is smaller than the sum of its proper divisors (80191980).

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

32240340 is a wasteful number, since it uses less digits than its factorization.

32240340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 32240340 is about 5678.0577665255. The cubic root of 32240340 is about 318.2730537129.

Adding to 32240340 its reverse (4304223), we get a palindrome (36544563).

The spelling of 32240340 in words is "thirty-two million, two hundred forty thousand, three hundred forty".