40424045 has 16 divisors (see below), whose sum is σ = 51678000. Its totient is φ = 30249984.

The previous prime is 40424009. The next prime is 40424051. The reversal of 40424045 is 54042404.

40424045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 405769 + 40018276 = 637^2 + 6326^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40424045 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40424045.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13331 + ... + 16079.

It is an arithmetic number, because the mean of its divisors is an integer number (3229875).

Almost surely, 2^40424045 is an apocalyptic number.

It is an amenable number.

40424045 is a deficient number, since it is larger than the sum of its proper divisors (11253955).

40424045 is a wasteful number, since it uses less digits than its factorization.

40424045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 40424045 is about 6357.9906417043. The cubic root of 40424045 is about 343.1994550345.

Adding to 40424045 its reverse (54042404), we get a palindrome (94466449).

The spelling of 40424045 in words is "forty million, four hundred twenty-four thousand, forty-five".