32145420 has 24 divisors (see below), whose sum is σ = 90007344. Its totient is φ = 8572096.

The previous prime is 32145403. The next prime is 32145433. The reversal of 32145420 is 2454123.

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, 267819 + ... + 267938.

It is an arithmetic number, because the mean of its divisors is an integer number (3750306).

Almost surely, 2^32145420 is an apocalyptic number.

32145420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32145420 is an abundant number, since it is smaller than the sum of its proper divisors (57861924).

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

32145420 is a wasteful number, since it uses less digits than its factorization.

32145420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535769 (or 535767 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 32145420 is about 5669.6931133881. The cubic root of 32145420 is about 317.9604001162.

Adding to 32145420 its reverse (2454123), we get a palindrome (34599543).

The spelling of 32145420 in words is "thirty-two million, one hundred forty-five thousand, four hundred twenty".