40252663 has 8 divisors (see below), whose sum is σ = 45328896. Its totient is φ = 35412600.

The previous prime is 40252661. The next prime is 40252673. The reversal of 40252663 is 36625204.

It is a happy number.

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 40252663 - 2¹ = 40252661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40252661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58681 + ... + 59362.

It is an arithmetic number, because the mean of its divisors is an integer number (5666112).

Almost surely, 2^40252663 is an apocalyptic number.

40252663 is a deficient number, since it is larger than the sum of its proper divisors (5076233).

40252663 is a wasteful number, since it uses less digits than its factorization.

40252663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118085.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 40252663 is about 6344.4986405547. The cubic root of 40252663 is about 342.7137579093.

Adding to 40252663 its reverse (36625204), we get a palindrome (76877867).

The spelling of 40252663 in words is "forty million, two hundred fifty-two thousand, six hundred sixty-three".