402429 has 8 divisors (see below), whose sum is σ = 546912. Its totient is φ = 263120.

The previous prime is 402419. The next prime is 402443. The reversal of 402429 is 924204.

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 402429 - 2⁹ = 401917 is a prime.

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, 1107 + ... + 1424.

It is an arithmetic number, because the mean of its divisors is an integer number (68364).

2⁴⁰²⁴²⁹ is an apocalyptic number.

It is an amenable number.

402429 is a deficient number, since it is larger than the sum of its proper divisors (144483).

402429 is a wasteful number, since it uses less digits than its factorization.

402429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 402429 is about 634.3729187158. The cubic root of 402429 is about 73.8294709743.

The spelling of 402429 in words is "four hundred two thousand, four hundred twenty-nine".