400341355 has 4 divisors (see below), whose sum is σ = 480409632. Its totient is φ = 320273080.

The previous prime is 400341349. The next prime is 400341367. The reversal of 400341355 is 553143004.

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

It is a de Polignac number, because none of the positive numbers 2^k-400341355 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 40034131 + ... + 40034140.

It is an arithmetic number, because the mean of its divisors is an integer number (120102408).

Almost surely, 2^400341355 is an apocalyptic number.

400341355 is a deficient number, since it is larger than the sum of its proper divisors (80068277).

400341355 is an equidigital number, since it uses as much as digits as its factorization.

400341355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80068276.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 400341355 is about 20008.5320551009. The cubic root of 400341355 is about 737.0158338968.

Adding to 400341355 its reverse (553143004), we get a palindrome (953484359).

The spelling of 400341355 in words is "four hundred million, three hundred forty-one thousand, three hundred fifty-five".