40572032 has 24 divisors (see below), whose sum is σ = 80970915. Its totient is φ = 20249984.

The previous prime is 40572031. The next prime is 40572041. The reversal of 40572032 is 23027504.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 20286016 + 20286016 = 4504^2 + 4504^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=4504.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40571989 and 40572007.

It is not an unprimeable number, because it can be changed into a prime (40572031) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 71783 + ... + 72345.

Almost surely, 2^40572032 is an apocalyptic number.

It is an amenable number.

40572032 is a deficient number, since it is larger than the sum of its proper divisors (40398883).

40572032 is an frugal number, since it uses more digits than its factorization.

40572032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 40572032 is about 6369.6178849284. The cubic root of 40572032 is about 343.6177473833.

Adding to 40572032 its reverse (23027504), we get a palindrome (63599536).

It can be divided in two parts, 4057203 and 2, that multiplied together give a triangular number (8114406 = T₄₀₂₈).

The spelling of 40572032 in words is "forty million, five hundred seventy-two thousand, thirty-two".