3402156444 has 12 divisors (see below), whose sum is σ = 7938365064. Its totient is φ = 1134052144.

The previous prime is 3402156437. The next prime is 3402156449. The reversal of 3402156444 is 4446512043.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3402156449) 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, 141756507 + ... + 141756530.

It is an arithmetic number, because the mean of its divisors is an integer number (661530422).

Almost surely, 2^3402156444 is an apocalyptic number.

It is an amenable number.

3402156444 is an abundant number, since it is smaller than the sum of its proper divisors (4536208620).

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

3402156444 is a wasteful number, since it uses less digits than its factorization.

3402156444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283513044 (or 283513042 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 3402156444 is about 58328.0073721021. The cubic root of 3402156444 is about 1504.0124342331.

Adding to 3402156444 its reverse (4446512043), we get a palindrome (7848668487).

The spelling of 3402156444 in words is "three billion, four hundred two million, one hundred fifty-six thousand, four hundred forty-four".