402126 has 8 divisors (see below), whose sum is σ = 804264. Its totient is φ = 134040.

The previous prime is 402107. The next prime is 402131. The reversal of 402126 is 621204.

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

402126 is an admirable number.

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, 33505 + ... + 33516.

It is an arithmetic number, because the mean of its divisors is an integer number (100533).

2⁴⁰²¹²⁶ is an apocalyptic number.

402126 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.

402126 is a wasteful number, since it uses less digits than its factorization.

402126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67026.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 402126 is about 634.1340552281. The cubic root of 402126 is about 73.8109369004.

It can be divided in two parts, 402 and 126, that added together give a triangular number (528 = T₃₂).

The spelling of 402126 in words is "four hundred two thousand, one hundred twenty-six".