402726 has 8 divisors (see below), whose sum is σ = 805464. Its totient is φ = 134240.

The previous prime is 402697. The next prime is 402739. The reversal of 402726 is 627204.

It is a happy number.

402726 is nontrivially palindromic in base 16.

402726 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

402726 is an admirable number.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33555 + ... + 33566.

It is an arithmetic number, because the mean of its divisors is an integer number (100683).

2⁴⁰²⁷²⁶ is an apocalyptic number.

402726 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.

402726 is a wasteful number, since it uses less digits than its factorization.

402726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67126.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 402726 is about 634.6069649791. The cubic root of 402726 is about 73.8476290103.

It can be divided in two parts, 402 and 726, that added together give a triangular number (1128 = T₄₇).

The spelling of 402726 in words is "four hundred two thousand, seven hundred twenty-six".