40433442 has 32 divisors (see below), whose sum is σ = 94390272. Its totient is φ = 11306064.

The previous prime is 40433401. The next prime is 40433443. The reversal of 40433442 is 24433404.

It is a happy number.

40433442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40433443) by changing a digit.

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, 8268 + ... + 12215.

It is an arithmetic number, because the mean of its divisors is an integer number (2949696).

Almost surely, 2^40433442 is an apocalyptic number.

40433442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40433442 is an abundant number, since it is smaller than the sum of its proper divisors (53956830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40433442 is a wasteful number, since it uses less digits than its factorization.

40433442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20542.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 40433442 is about 6358.7295900990. The cubic root of 40433442 is about 343.2260464309.

Adding to 40433442 its reverse (24433404), we get a palindrome (64866846).

The spelling of 40433442 in words is "forty million, four hundred thirty-three thousand, four hundred forty-two".