402236255 has 4 divisors (see below), whose sum is σ = 482683512. Its totient is φ = 321789000.

The previous prime is 402236249. The next prime is 402236267. The reversal of 402236255 is 552632204.

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

It is not a de Polignac number, because 402236255 - 2¹⁰ = 402235231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40223621 + ... + 40223630.

It is an arithmetic number, because the mean of its divisors is an integer number (120670878).

Almost surely, 2^402236255 is an apocalyptic number.

402236255 is a deficient number, since it is larger than the sum of its proper divisors (80447257).

402236255 is an equidigital number, since it uses as much as digits as its factorization.

402236255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80447256.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 402236255 is about 20055.8284545914. The cubic root of 402236255 is about 738.1768211726.

Adding to 402236255 its reverse (552632204), we get a palindrome (954868459).

The spelling of 402236255 in words is "four hundred two million, two hundred thirty-six thousand, two hundred fifty-five".