32120040 has 32 divisors (see below), whose sum is σ = 96360480. Its totient is φ = 8565312.

The previous prime is 32120027. The next prime is 32120041. The reversal of 32120040 is 4002123.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 32119998 and 32120025.

It is not an unprimeable number, because it can be changed into a prime (32120041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133714 + ... + 133953.

It is an arithmetic number, because the mean of its divisors is an integer number (3011265).

Almost surely, 2^32120040 is an apocalyptic number.

32120040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32120040 is an abundant number, since it is smaller than the sum of its proper divisors (64240440).

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

32120040 is a wasteful number, since it uses less digits than its factorization.

32120040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267681 (or 267677 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 32120040 is about 5667.4544550442. The cubic root of 32120040 is about 317.8766975784.

Adding to 32120040 its reverse (4002123), we get a palindrome (36122163).

The spelling of 32120040 in words is "thirty-two million, one hundred twenty thousand, forty".