32440530 has 16 divisors (see below), whose sum is σ = 77857344. Its totient is φ = 8650800.

The previous prime is 32440523. The next prime is 32440547. The reversal of 32440530 is 3504423.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 32440497 and 32440506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540646 + ... + 540705.

It is an arithmetic number, because the mean of its divisors is an integer number (4866084).

Almost surely, 2^32440530 is an apocalyptic number.

32440530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

32440530 is an abundant number, since it is smaller than the sum of its proper divisors (45416814).

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

32440530 is a wasteful number, since it uses less digits than its factorization.

32440530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081361.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 32440530 is about 5695.6588732121. The cubic root of 32440530 is about 318.9304460799.

Adding to 32440530 its reverse (3504423), we get a palindrome (35944953).

The spelling of 32440530 in words is "thirty-two million, four hundred forty thousand, five hundred thirty".