40432045 has 16 divisors (see below), whose sum is σ = 50855040. Its totient is φ = 30800704.

The previous prime is 40432043. The next prime is 40432087. The reversal of 40432045 is 54023404.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40432045 - 2¹ = 40432043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40432043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30282 + ... + 31588.

It is an arithmetic number, because the mean of its divisors is an integer number (3178440).

Almost surely, 2^40432045 is an apocalyptic number.

It is an amenable number.

40432045 is a deficient number, since it is larger than the sum of its proper divisors (10422995).

40432045 is a wasteful number, since it uses less digits than its factorization.

40432045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 40432045 is about 6358.6197401637. The cubic root of 40432045 is about 343.2220934959. Note that the first 3 decimals are identical.

Adding to 40432045 its reverse (54023404), we get a palindrome (94455449).

The spelling of 40432045 in words is "forty million, four hundred thirty-two thousand, forty-five".