32432420 has 12 divisors (see below), whose sum is σ = 68108124. Its totient is φ = 12972960.

The previous prime is 32432399. The next prime is 32432443. The reversal of 32432420 is 2423423.

It can be written as a sum of positive squares in 2 ways, for example, as 9084196 + 23348224 = 3014^2 + 4832^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1621621 = 32432420 / (3 + 2 + 4 + 3 + 2 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 32432392 and 32432401.

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 3 ways as a sum of consecutive naturals, for example, 810791 + ... + 810830.

It is an arithmetic number, because the mean of its divisors is an integer number (5675677).

Almost surely, 2^32432420 is an apocalyptic number.

It is an amenable number.

32432420 is an abundant number, since it is smaller than the sum of its proper divisors (35675704).

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

32432420 is a wasteful number, since it uses less digits than its factorization.

32432420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621630 (or 1621628 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 32432420 is about 5694.9468829832. The cubic root of 32432420 is about 318.9038667619.

Adding to 32432420 its reverse (2423423), we get a palindrome (34855843).

The spelling of 32432420 in words is "thirty-two million, four hundred thirty-two thousand, four hundred twenty".