400059955 has 4 divisors (see below), whose sum is σ = 480071952. Its totient is φ = 320047960.

The previous prime is 400059923. The next prime is 400059971. The reversal of 400059955 is 559950004.

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

It is not a de Polignac number, because 400059955 - 2⁵ = 400059923 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40005991 + ... + 40006000.

It is an arithmetic number, because the mean of its divisors is an integer number (120017988).

Almost surely, 2^400059955 is an apocalyptic number.

400059955 is a deficient number, since it is larger than the sum of its proper divisors (80011997).

400059955 is an equidigital number, since it uses as much as digits as its factorization.

400059955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80011996.

The product of its (nonzero) digits is 40500, while the sum is 37.

The square root of 400059955 is about 20001.4988188386. The cubic root of 400059955 is about 736.8431105737.

The spelling of 400059955 in words is "four hundred million, fifty-nine thousand, nine hundred fifty-five".