402242244 has 24 divisors (see below), whose sum is σ = 963932928. Its totient is φ = 130456800.

The previous prime is 402242233. The next prime is 402242257. The reversal of 402242244 is 442242204.

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, 452532 + ... + 453419.

It is an arithmetic number, because the mean of its divisors is an integer number (40163872).

Almost surely, 2^402242244 is an apocalyptic number.

It is an amenable number.

402242244 is an abundant number, since it is smaller than the sum of its proper divisors (561690684).

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

402242244 is a wasteful number, since it uses less digits than its factorization.

402242244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905995 (or 905993 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 402242244 is about 20055.9777622533. The cubic root of 402242244 is about 738.1804847898.

Adding to 402242244 its reverse (442242204), we get a palindrome (844484448).

The spelling of 402242244 in words is "four hundred two million, two hundred forty-two thousand, two hundred forty-four".