3144402 has 24 divisors (see below), whose sum is σ = 6909084. Its totient is φ = 1033344.

The previous prime is 3144389. The next prime is 3144403. The reversal of 3144402 is 2044413.

It can be written as a sum of positive squares in 2 ways, for example, as 2893401 + 251001 = 1701^2 + 501^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3144403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118 + ... + 2510.

Almost surely, 2^3144402 is an apocalyptic number.

3144402 is an abundant number, since it is smaller than the sum of its proper divisors (3764682).

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

3144402 is a wasteful number, since it uses less digits than its factorization.

3144402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474 (or 2471 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 3144402 is about 1773.2461758030. The cubic root of 3144402 is about 146.5028324379.

Adding to 3144402 its reverse (2044413), we get a palindrome (5188815).

The spelling of 3144402 in words is "three million, one hundred forty-four thousand, four hundred two".