402236254 has 16 divisors (see below), whose sum is σ = 694512000. Its totient is φ = 171145944.

The previous prime is 402236249. The next prime is 402236267. The reversal of 402236254 is 452632204.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 101404 + ... + 105295.

It is an arithmetic number, because the mean of its divisors is an integer number (43407000).

Almost surely, 2^402236254 is an apocalyptic number.

402236254 is a deficient number, since it is larger than the sum of its proper divisors (292275746).

402236254 is a wasteful number, since it uses less digits than its factorization.

402236254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206847.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 402236254 is about 20055.8284296610. The cubic root of 402236254 is about 738.1768205609.

Adding to 402236254 its reverse (452632204), we get a palindrome (854868458).

The spelling of 402236254 in words is "four hundred two million, two hundred thirty-six thousand, two hundred fifty-four".