40629959 has 8 divisors (see below), whose sum is σ = 42517440. Its totient is φ = 38784096.

The previous prime is 40629917. The next prime is 40629991. The reversal of 40629959 is 95992604.

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 40629959 - 2⁸ = 40629703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40629059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8399 + ... + 12320.

It is an arithmetic number, because the mean of its divisors is an integer number (5314680).

Almost surely, 2^40629959 is an apocalyptic number.

40629959 is a deficient number, since it is larger than the sum of its proper divisors (1887481).

40629959 is a wasteful number, since it uses less digits than its factorization.

40629959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20809.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 40629959 is about 6374.1633960858. The cubic root of 40629959 is about 343.7812038230.

The spelling of 40629959 in words is "forty million, six hundred twenty-nine thousand, nine hundred fifty-nine".