402474 has 8 divisors (see below), whose sum is σ = 804960. Its totient is φ = 134156.

The previous prime is 402443. The next prime is 402487. The reversal of 402474 is 474204.

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

402474 is an admirable number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 402474.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33534 + ... + 33545.

It is an arithmetic number, because the mean of its divisors is an integer number (100620).

2⁴⁰²⁴⁷⁴ is an apocalyptic number.

402474 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.

402474 is a wasteful number, since it uses less digits than its factorization.

402474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67084.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 402474 is about 634.4083858210. The cubic root of 402474 is about 73.8322227660.

Adding to 402474 its reverse (474204), we get a palindrome (876678).

The spelling of 402474 in words is "four hundred two thousand, four hundred seventy-four", and thus it is an iban number.