3126402 has 36 divisors (see below), whose sum is σ = 7207746. Its totient is φ = 979200.

The previous prime is 3126397. The next prime is 3126427. The reversal of 3126402 is 2046213.

It is a happy number.

3126402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 3101121 + 25281 = 1761^2 + 159^2 .

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

It is an unprimeable 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 17 ways as a sum of consecutive naturals, for example, 4902 + ... + 5502.

Almost surely, 2^3126402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3126402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3603873).

3126402 is an abundant number, since it is smaller than the sum of its proper divisors (4081344).

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

3126402 is a wasteful number, since it uses less digits than its factorization.

3126402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3126402 is about 1768.1634539827. The cubic root of 3126402 is about 146.2227474971. Note that the first 3 decimals are identical.

The spelling of 3126402 in words is "three million, one hundred twenty-six thousand, four hundred two".