32189940 has 48 divisors (see below), whose sum is σ = 100148160. Its totient is φ = 8583840.

The previous prime is 32189939. The next prime is 32189947. The reversal of 32189940 is 4998123.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 32189895 and 32189904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32189947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29266 + ... + 30345.

It is an arithmetic number, because the mean of its divisors is an integer number (2086420).

Almost surely, 2^32189940 is an apocalyptic number.

32189940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32189940 is an abundant number, since it is smaller than the sum of its proper divisors (67958220).

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

32189940 is a wasteful number, since it uses less digits than its factorization.

32189940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59629 (or 59621 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 32189940 is about 5673.6178933728. The cubic root of 32189940 is about 318.1071194837.

The spelling of 32189940 in words is "thirty-two million, one hundred eighty-nine thousand, nine hundred forty".