40220032 has 16 divisors (see below), whose sum is σ = 80126100. Its totient is φ = 20109952.

The previous prime is 40220027. The next prime is 40220039. The reversal of 40220032 is 23002204.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 40219994 and 40220021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40220039) by changing a digit.

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 as a sum of consecutive naturals, namely, 156982 + ... + 157237.

Almost surely, 2^40220032 is an apocalyptic number.

It is an amenable number.

40220032 is a deficient number, since it is larger than the sum of its proper divisors (39906068).

40220032 is an equidigital number, since it uses as much as digits as its factorization.

40220032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314233 (or 314221 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 40220032 is about 6341.9265211764. The cubic root of 40220032 is about 342.6211253973.

Adding to 40220032 its reverse (23002204), we get a palindrome (63222236).

The spelling of 40220032 in words is "forty million, two hundred twenty thousand, thirty-two".