32113820 has 12 divisors (see below), whose sum is σ = 67439064. Its totient is φ = 12845520.

The previous prime is 32113811. The next prime is 32113843. The reversal of 32113820 is 2831123.

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: 1605691 = 32113820 / (3 + 2 + 1 + 1 + 3 + 8 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 32113792 and 32113801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802826 + ... + 802865.

It is an arithmetic number, because the mean of its divisors is an integer number (5619922).

Almost surely, 2^32113820 is an apocalyptic number.

It is an amenable number.

32113820 is an abundant number, since it is smaller than the sum of its proper divisors (35325244).

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

32113820 is a wasteful number, since it uses less digits than its factorization.

32113820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605700 (or 1605698 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 32113820 is about 5666.9056812338. The cubic root of 32113820 is about 317.8561774638.

Adding to 32113820 its reverse (2831123), we get a palindrome (34944943).

It can be divided in two parts, 321 and 13820, that added together give a palindrome (14141).

The spelling of 32113820 in words is "thirty-two million, one hundred thirteen thousand, eight hundred twenty".