40479 has 8 divisors (see below), whose sum is σ = 54912. Its totient is φ = 26520.

The previous prime is 40471. The next prime is 40483. The reversal of 40479 is 97404.

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

It is not a de Polignac number, because 40479 - 2³ = 40471 is a prime.

40479 is a lucky number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40471) 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, 244 + ... + 374.

It is an arithmetic number, because the mean of its divisors is an integer number (6864).

2⁴⁰⁴⁷⁹ is an apocalyptic number.

40479 is a deficient number, since it is larger than the sum of its proper divisors (14433).

40479 is a wasteful number, since it uses less digits than its factorization.

40479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 40479 is about 201.1939362903. The cubic root of 40479 is about 34.3354906951.

The spelling of 40479 in words is "forty thousand, four hundred seventy-nine".