32140140 has 24 divisors (see below), whose sum is σ = 89992560. Its totient is φ = 8570688.

The previous prime is 32140139. The next prime is 32140159. The reversal of 32140140 is 4104123.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 267775 + ... + 267894.

It is an arithmetic number, because the mean of its divisors is an integer number (3749690).

Almost surely, 2^32140140 is an apocalyptic number.

32140140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32140140 is an abundant number, since it is smaller than the sum of its proper divisors (57852420).

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

32140140 is a wasteful number, since it uses less digits than its factorization.

32140140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535681 (or 535679 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 32140140 is about 5669.2274605981. The cubic root of 32140140 is about 317.9429904526.

Adding to 32140140 its reverse (4104123), we get a palindrome (36244263).

The spelling of 32140140 in words is "thirty-two million, one hundred forty thousand, one hundred forty".