402246655 has 16 divisors (see below), whose sum is σ = 505580544. Its totient is φ = 306646560.

The previous prime is 402246653. The next prime is 402246667. The reversal of 402246655 is 556642204.

It is not a de Polignac number, because 402246655 - 2¹ = 402246653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402246655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402246653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24712 + ... + 37618.

It is an arithmetic number, because the mean of its divisors is an integer number (31598784).

Almost surely, 2^402246655 is an apocalyptic number.

402246655 is a deficient number, since it is larger than the sum of its proper divisors (103333889).

402246655 is a wasteful number, since it uses less digits than its factorization.

402246655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13206.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 402246655 is about 20056.0877291659. The cubic root of 402246655 is about 738.1831830828.

Adding to 402246655 its reverse (556642204), we get a palindrome (958888859).

The spelling of 402246655 in words is "four hundred two million, two hundred forty-six thousand, six hundred fifty-five".