402132844 has 6 divisors (see below), whose sum is σ = 703732484. Its totient is φ = 201066420.

The previous prime is 402132839. The next prime is 402132847. The reversal of 402132844 is 448231204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (402132847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50266602 + ... + 50266609.

Almost surely, 2^402132844 is an apocalyptic number.

It is an amenable number.

402132844 is a deficient number, since it is larger than the sum of its proper divisors (301599640).

402132844 is a wasteful number, since it uses less digits than its factorization.

402132844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100533215 (or 100533213 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 402132844 is about 20053.2502103774. The cubic root of 402132844 is about 738.1135564080.

The spelling of 402132844 in words is "four hundred two million, one hundred thirty-two thousand, eight hundred forty-four".