402734 has 8 divisors (see below), whose sum is σ = 614520. Its totient is φ = 197896.

The previous prime is 402697. The next prime is 402739. The reversal of 402734 is 437204.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402739) 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, 1589 + ... + 1824.

It is an arithmetic number, because the mean of its divisors is an integer number (76815).

2⁴⁰²⁷³⁴ is an apocalyptic number.

402734 is a deficient number, since it is larger than the sum of its proper divisors (211786).

402734 is a wasteful number, since it uses less digits than its factorization.

402734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 402734 is about 634.6132680617. The cubic root of 402734 is about 73.8481179922.

Adding to 402734 its reverse (437204), we get a palindrome (839938).

The spelling of 402734 in words is "four hundred two thousand, seven hundred thirty-four".