40423434 has 8 divisors (see below), whose sum is σ = 80846880. Its totient is φ = 13474476.

The previous prime is 40423429. The next prime is 40423447. The reversal of 40423434 is 43432404.

It is a happy number.

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

40423434 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3368614 + ... + 3368625.

It is an arithmetic number, because the mean of its divisors is an integer number (10105860).

Almost surely, 2^40423434 is an apocalyptic number.

40423434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40423434 is a wasteful number, since it uses less digits than its factorization.

40423434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6737244.

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

The square root of 40423434 is about 6357.9425917509. The cubic root of 40423434 is about 343.1977258993.

Adding to 40423434 its reverse (43432404), we get a palindrome (83855838).

The spelling of 40423434 in words is "forty million, four hundred twenty-three thousand, four hundred thirty-four".