40432055 has 4 divisors (see below), whose sum is σ = 48518472. Its totient is φ = 32345640.

The previous prime is 40432043. The next prime is 40432087. The reversal of 40432055 is 55023404.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40432055 - 2⁸ = 40431799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40432055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4043201 + ... + 4043210.

It is an arithmetic number, because the mean of its divisors is an integer number (12129618).

Almost surely, 2^40432055 is an apocalyptic number.

40432055 is a deficient number, since it is larger than the sum of its proper divisors (8086417).

40432055 is an equidigital number, since it uses as much as digits as its factorization.

40432055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8086416.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 40432055 is about 6358.6205264979. The cubic root of 40432055 is about 343.2221217921. Note that the first 3 decimals are identical.

Adding to 40432055 its reverse (55023404), we get a palindrome (95455459).

The spelling of 40432055 in words is "forty million, four hundred thirty-two thousand, fifty-five".