402134244 has 24 divisors (see below), whose sum is σ = 938766528. Its totient is φ = 133980000.

The previous prime is 402134219. The next prime is 402134251. The reversal of 402134244 is 442431204.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22369 + ... + 36119.

It is an arithmetic number, because the mean of its divisors is an integer number (39115272).

Almost surely, 2^402134244 is an apocalyptic number.

It is an amenable number.

402134244 is an abundant number, since it is smaller than the sum of its proper divisors (536632284).

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

402134244 is a wasteful number, since it uses less digits than its factorization.

402134244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16195 (or 16193 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 402134244 is about 20053.2851174066. The cubic root of 402134244 is about 738.1144129722.

Adding to 402134244 its reverse (442431204), we get a palindrome (844565448).

The spelling of 402134244 in words is "four hundred two million, one hundred thirty-four thousand, two hundred forty-four".