402258 has 8 divisors (see below), whose sum is σ = 804528. Its totient is φ = 134084.

The previous prime is 402253. The next prime is 402263. The reversal of 402258 is 852204.

402258 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (402253) and next prime (402263).

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

402258 is an admirable number.

It is a super-2 number, since 2×402258² = 323622997128, which contains 22 as substring.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (402253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33516 + ... + 33527.

It is an arithmetic number, because the mean of its divisors is an integer number (100566).

2⁴⁰²²⁵⁸ is an apocalyptic number.

402258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402258 is a wasteful number, since it uses less digits than its factorization.

402258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67048.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 402258 is about 634.2381256279. The cubic root of 402258 is about 73.8190122945.

The spelling of 402258 in words is "four hundred two thousand, two hundred fifty-eight".