400090255 has 8 divisors (see below), whose sum is σ = 482546592. Its totient is φ = 318446688.

The previous prime is 400090253. The next prime is 400090283. The reversal of 400090255 is 552090004.

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 400090255 - 2¹ = 400090253 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 (400090253) 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 7 ways as a sum of consecutive naturals, for example, 202107 + ... + 204076.

It is an arithmetic number, because the mean of its divisors is an integer number (60318324).

Almost surely, 2^400090255 is an apocalyptic number.

400090255 is a deficient number, since it is larger than the sum of its proper divisors (82456337).

400090255 is a wasteful number, since it uses less digits than its factorization.

400090255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406385.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 400090255 is about 20002.2562477337. The cubic root of 400090255 is about 736.8617126044.

The spelling of 400090255 in words is "four hundred million, ninety thousand, two hundred fifty-five".