40537663 has 8 divisors (see below), whose sum is σ = 41522976. Its totient is φ = 39564000.

The previous prime is 40537619. The next prime is 40537711. The reversal of 40537663 is 36673504.

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 40537663 - 2²¹ = 38440511 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 (40537603) 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, 4345 + ... + 9997.

It is an arithmetic number, because the mean of its divisors is an integer number (5190372).

Almost surely, 2^40537663 is an apocalyptic number.

40537663 is a deficient number, since it is larger than the sum of its proper divisors (985313).

40537663 is a wasteful number, since it uses less digits than its factorization.

40537663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5825.

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 40537663 is about 6366.9194277924. The cubic root of 40537663 is about 343.5206925561.

The spelling of 40537663 in words is "forty million, five hundred thirty-seven thousand, six hundred sixty-three".