40434321 has 8 divisors (see below), whose sum is σ = 54006624. Its totient is φ = 26909120.

The previous prime is 40434311. The next prime is 40434367. The reversal of 40434321 is 12343404.

40434321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40434321 - 2⁷ = 40434193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40434311) 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 7 ways as a sum of consecutive naturals, for example, 9720 + ... + 13241.

It is an arithmetic number, because the mean of its divisors is an integer number (6750828).

Almost surely, 2^40434321 is an apocalyptic number.

It is an amenable number.

40434321 is a deficient number, since it is larger than the sum of its proper divisors (13572303).

40434321 is a wasteful number, since it uses less digits than its factorization.

40434321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23551.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 40434321 is about 6358.7987073031. The cubic root of 40434321 is about 343.2285335925.

Adding to 40434321 its reverse (12343404), we get a palindrome (52777725).

It can be divided in two parts, 40434 and 321, that added together give a triangular number (40755 = T₂₈₅).

The spelling of 40434321 in words is "forty million, four hundred thirty-four thousand, three hundred twenty-one".