40678 has 12 divisors (see below), whose sum is σ = 68148. Its totient is φ = 18060.

The previous prime is 40639. The next prime is 40693. The reversal of 40678 is 87604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 925 + ... + 967.

It is an arithmetic number, because the mean of its divisors is an integer number (5679).

2⁴⁰⁶⁷⁸ is an apocalyptic number.

40678 is a deficient number, since it is larger than the sum of its proper divisors (27470).

40678 is a wasteful number, since it uses less digits than its factorization.

40678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 40678 is about 201.6878776724. The cubic root of 40678 is about 34.3916646471.

It can be divided in two parts, 406 and 78, that added together give a palindrome (484).

The spelling of 40678 in words is "forty thousand, six hundred seventy-eight".