402174 has 12 divisors (see below), whose sum is σ = 871416. Its totient is φ = 134052.

The previous prime is 402139. The next prime is 402197. The reversal of 402174 is 471204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 22343 = 402174 / (4 + 0 + 2 + 1 + 7 + 4).

It is a congruent number.

It is an unprimeable number.

402174 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11154 + ... + 11189.

It is an arithmetic number, because the mean of its divisors is an integer number (72618).

2⁴⁰²¹⁷⁴ is an apocalyptic number.

402174 is an abundant number, since it is smaller than the sum of its proper divisors (469242).

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

402174 is a wasteful number, since it uses less digits than its factorization.

402174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22351 (or 22348 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 402174 is about 634.1719009858. The cubic root of 402174 is about 73.8138736118.

Adding to 402174 its reverse (471204), we get a palindrome (873378).

It can be divided in two parts, 4021 and 74, that added together give a triangular number (4095 = T₉₀).

The spelling of 402174 in words is "four hundred two thousand, one hundred seventy-four", and thus it is an iban number.