402268 has 24 divisors (see below), whose sum is σ = 761600. Its totient is φ = 185328.

The previous prime is 402263. The next prime is 402277. The reversal of 402268 is 862204.

It is an Ulam 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 (402263) 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, 5053 + ... + 5131.

2⁴⁰²²⁶⁸ is an apocalyptic number.

It is an amenable number.

402268 is a deficient number, since it is larger than the sum of its proper divisors (359332).

402268 is a wasteful number, since it uses less digits than its factorization.

402268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 402268 is about 634.2460090533. The cubic root of 402268 is about 73.8196239948.

The spelling of 402268 in words is "four hundred two thousand, two hundred sixty-eight".