40632881 has 8 divisors (see below), whose sum is σ = 42557184. Its totient is φ = 38721760.

The previous prime is 40632877. The next prime is 40632901. The reversal of 40632881 is 18823604.

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 40632881 - 2² = 40632877 is a prime.

It is a super-2 number, since 2×40632881² = 3302062036720322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40632281) 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, 3320 + ... + 9606.

It is an arithmetic number, because the mean of its divisors is an integer number (5319648).

Almost surely, 2^40632881 is an apocalyptic number.

It is an amenable number.

40632881 is a deficient number, since it is larger than the sum of its proper divisors (1924303).

40632881 is a wasteful number, since it uses less digits than its factorization.

40632881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6591.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 40632881 is about 6374.3925985148. The cubic root of 40632881 is about 343.7894449061.

The spelling of 40632881 in words is "forty million, six hundred thirty-two thousand, eight hundred eighty-one".