400232255 has 8 divisors (see below), whose sum is σ = 482341392. Its totient is φ = 318810688.

The previous prime is 400232251. The next prime is 400232257. The reversal of 400232255 is 552232004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400232255 - 2² = 400232251 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 400232255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400232251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170609 + ... + 172938.

It is an arithmetic number, because the mean of its divisors is an integer number (60292674).

Almost surely, 2^400232255 is an apocalyptic number.

400232255 is a deficient number, since it is larger than the sum of its proper divisors (82109137).

400232255 is a wasteful number, since it uses less digits than its factorization.

400232255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343785.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 400232255 is about 20005.8055323948. The cubic root of 400232255 is about 736.9488779255.

Adding to 400232255 its reverse (552232004), we get a palindrome (952464259).

The spelling of 400232255 in words is "four hundred million, two hundred thirty-two thousand, two hundred fifty-five".