402412655 has 4 divisors (see below), whose sum is σ = 482895192. Its totient is φ = 321930120.

The previous prime is 402412651. The next prime is 402412667. The reversal of 402412655 is 556214204.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 402412655 - 2² = 402412651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402412651) 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 in 3 ways as a sum of consecutive naturals, for example, 40241261 + ... + 40241270.

It is an arithmetic number, because the mean of its divisors is an integer number (120723798).

Almost surely, 2^402412655 is an apocalyptic number.

402412655 is a deficient number, since it is larger than the sum of its proper divisors (80482537).

402412655 is an equidigital number, since it uses as much as digits as its factorization.

402412655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80482536.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 402412655 is about 20060.2256966366. The cubic root of 402412655 is about 738.2847141162.

Adding to 402412655 its reverse (556214204), we get a palindrome (958626859).

The spelling of 402412655 in words is "four hundred two million, four hundred twelve thousand, six hundred fifty-five".