40634 has 8 divisors (see below), whose sum is σ = 66528. Its totient is φ = 18460.

The previous prime is 40627. The next prime is 40637. The reversal of 40634 is 43604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40634² = 3302243912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902 + ... + 945.

It is an arithmetic number, because the mean of its divisors is an integer number (8316).

2⁴⁰⁶³⁴ is an apocalyptic number.

40634 is a deficient number, since it is larger than the sum of its proper divisors (25894).

40634 is a wasteful number, since it uses less digits than its factorization.

40634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 40634 is about 201.5787687233. The cubic root of 40634 is about 34.3792600781.

The spelling of 40634 in words is "forty thousand, six hundred thirty-four".