32140381 has 32 divisors (see below), whose sum is σ = 43142400. Its totient is φ = 23224320.

The previous prime is 32140363. The next prime is 32140391. The reversal of 32140381 is 18304123.

It is not a de Polignac number, because 32140381 - 2⁵ = 32140349 is a prime.

It is a super-2 number, since 2×32140381² = 2066008181650322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32140301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49821 + ... + 50461.

It is an arithmetic number, because the mean of its divisors is an integer number (1348200).

Almost surely, 2^32140381 is an apocalyptic number.

It is an amenable number.

32140381 is a deficient number, since it is larger than the sum of its proper divisors (11002019).

32140381 is a wasteful number, since it uses less digits than its factorization.

32140381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 32140381 is about 5669.2487156589. The cubic root of 32140381 is about 317.9437851398.

The spelling of 32140381 in words is "thirty-two million, one hundred forty thousand, three hundred eighty-one".