40669015 has 8 divisors (see below), whose sum is σ = 51673680. Its totient is φ = 30621312.

The previous prime is 40669001. The next prime is 40669043. The reversal of 40669015 is 51096604.

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 40669015 - 2⁹ = 40668503 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239145 + ... + 239314.

It is an arithmetic number, because the mean of its divisors is an integer number (6459210).

Almost surely, 2^40669015 is an apocalyptic number.

40669015 is a deficient number, since it is larger than the sum of its proper divisors (11004665).

40669015 is a wasteful number, since it uses less digits than its factorization.

40669015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478481.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 40669015 is about 6377.2262779362. The cubic root of 40669015 is about 343.8913230481.

The spelling of 40669015 in words is "forty million, six hundred sixty-nine thousand, fifteen".