402402244 has 6 divisors (see below), whose sum is σ = 704203934. Its totient is φ = 201201120.

The previous prime is 402402239. The next prime is 402402251. The reversal of 402402244 is 442204204.

It can be written as a sum of positive squares in only one way, i.e., 346332100 + 56070144 = 18610^2 + 7488^2 .

It is an unprimeable number.

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, 50300277 + ... + 50300284.

Almost surely, 2^402402244 is an apocalyptic number.

It is an amenable number.

402402244 is a deficient number, since it is larger than the sum of its proper divisors (301801690).

402402244 is a wasteful number, since it uses less digits than its factorization.

402402244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100600565 (or 100600563 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 402402244 is about 20059.9662013673. The cubic root of 402402244 is about 738.2783472286.

Adding to 402402244 its reverse (442204204), we get a palindrome (844606448).

The spelling of 402402244 in words is "four hundred two million, four hundred two thousand, two hundred forty-four".