40429699 has 4 divisors (see below), whose sum is σ = 42187536. Its totient is φ = 38671864.

The previous prime is 40429687. The next prime is 40429703. The reversal of 40429699 is 99692404.

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 40429699 - 2⁵ = 40429667 is a prime.

It is a super-2 number, since 2×40429699² = 3269121122461202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40429199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878884 + ... + 878929.

It is an arithmetic number, because the mean of its divisors is an integer number (10546884).

Almost surely, 2^40429699 is an apocalyptic number.

40429699 is a deficient number, since it is larger than the sum of its proper divisors (1757837).

40429699 is a wasteful number, since it uses less digits than its factorization.

40429699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757836.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 40429699 is about 6358.4352634905. The cubic root of 40429699 is about 343.2154550765.

It can be divided in two parts, 404 and 29699, that added together give a palindrome (30103).

The spelling of 40429699 in words is "forty million, four hundred twenty-nine thousand, six hundred ninety-nine".