40434559 has 4 divisors (see below), whose sum is σ = 44110440. Its totient is φ = 36758680.

The previous prime is 40434553. The next prime is 40434593. The reversal of 40434559 is 95543404.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40434559 - 2⁷ = 40434431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40434553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1837924 + ... + 1837945.

It is an arithmetic number, because the mean of its divisors is an integer number (11027610).

Almost surely, 2^40434559 is an apocalyptic number.

40434559 is a deficient number, since it is larger than the sum of its proper divisors (3675881).

40434559 is a wasteful number, since it uses less digits than its factorization.

40434559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675880.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 40434559 is about 6358.8174215022. The cubic root of 40434559 is about 343.2292070157.

It can be divided in two parts, 404345 and 59, that added together give a palindrome (404404).

The spelling of 40434559 in words is "forty million, four hundred thirty-four thousand, five hundred fifty-nine".