402479 has 8 divisors (see below), whose sum is σ = 501888. Its totient is φ = 313560.

The previous prime is 402443. The next prime is 402487. The reversal of 402479 is 974204.

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 402479 - 2⁸ = 402223 is a prime.

It is a Duffinian 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 (402419) 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, 2537 + ... + 2690.

It is an arithmetic number, because the mean of its divisors is an integer number (62736).

2⁴⁰²⁴⁷⁹ is an apocalyptic number.

402479 is a deficient number, since it is larger than the sum of its proper divisors (99409).

402479 is a wasteful number, since it uses less digits than its factorization.

402479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5245.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 402479 is about 634.4123264881. The cubic root of 402479 is about 73.8325285080.

The spelling of 402479 in words is "four hundred two thousand, four hundred seventy-nine".