400235053 has 4 divisors (see below), whose sum is σ = 400374720. Its totient is φ = 400095388.

The previous prime is 400235021. The next prime is 400235081. The reversal of 400235053 is 350532004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400235053 - 2⁵ = 400235021 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 (400239053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65443 + ... + 71296.

It is an arithmetic number, because the mean of its divisors is an integer number (100093680).

Almost surely, 2^400235053 is an apocalyptic number.

It is an amenable number.

400235053 is a deficient number, since it is larger than the sum of its proper divisors (139667).

400235053 is a wasteful number, since it uses less digits than its factorization.

400235053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139666.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 400235053 is about 20005.8754619737. The cubic root of 400235053 is about 736.9505952435.

Adding to 400235053 its reverse (350532004), we get a palindrome (750767057).

The spelling of 400235053 in words is "four hundred million, two hundred thirty-five thousand, fifty-three".