402288056 has 8 divisors (see below), whose sum is σ = 754290120. Its totient is φ = 201144024.

The previous prime is 402288053. The next prime is 402288077. The reversal of 402288056 is 650882204.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402288053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25142996 + ... + 25143011.

It is an arithmetic number, because the mean of its divisors is an integer number (94286265).

Almost surely, 2^402288056 is an apocalyptic number.

It is an amenable number.

402288056 is a deficient number, since it is larger than the sum of its proper divisors (352002064).

402288056 is a wasteful number, since it uses less digits than its factorization.

402288056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50286013 (or 50286009 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 402288056 is about 20057.1198331166. The cubic root of 402288056 is about 738.2085079037.

It can be divided in two parts, 40228 and 8056, that added together give a palindrome (48284).

The spelling of 402288056 in words is "four hundred two million, two hundred eighty-eight thousand, fifty-six".