705402 has 16 divisors (see below), whose sum is σ = 1567680. Its totient is φ = 235116.

The previous prime is 705389. The next prime is 705403. The reversal of 705402 is 204507.

It is a happy number.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (705403) by changing a digit.

705402 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 7 ways as a sum of consecutive naturals, for example, 6478 + ... + 6585.

It is an arithmetic number, because the mean of its divisors is an integer number (97980).

2⁷⁰⁵⁴⁰² is an apocalyptic number.

705402 is an abundant number, since it is smaller than the sum of its proper divisors (862278).

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

705402 is a wasteful number, since it uses less digits than its factorization.

705402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13074 (or 13068 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 705402 is about 839.8821345879. The cubic root of 705402 is about 89.0182178756.

Adding to 705402 its reverse (204507), we get a palindrome (909909).

The spelling of 705402 in words is "seven hundred five thousand, four hundred two".