400795155 has 48 divisors (see below), whose sum is σ = 722155680. Its totient is φ = 210899520.

The previous prime is 400795127. The next prime is 400795159. The reversal of 400795155 is 551597004.

It is not a de Polignac number, because 400795155 - 2⁵ = 400795123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400795159) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2316649 + ... + 2316821.

It is an arithmetic number, because the mean of its divisors is an integer number (15044910).

Almost surely, 2^400795155 is an apocalyptic number.

400795155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

400795155 is a deficient number, since it is larger than the sum of its proper divisors (321360525).

400795155 is a wasteful number, since it uses less digits than its factorization.

400795155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 400795155 is about 20019.8690055654. The cubic root of 400795155 is about 737.2942059143.

The spelling of 400795155 in words is "four hundred million, seven hundred ninety-five thousand, one hundred fifty-five".