401207855 has 8 divisors (see below), whose sum is σ = 486216864. Its totient is φ = 317788000.

The previous prime is 401207843. The next prime is 401207867. The reversal of 401207855 is 558702104.

It is an interprime number because it is at equal distance from previous prime (401207843) and next prime (401207867).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-401207855 is a prime.

It is a Duffinian number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 396731 + ... + 397740.

It is an arithmetic number, because the mean of its divisors is an integer number (60777108).

Almost surely, 2^401207855 is an apocalyptic number.

401207855 is a deficient number, since it is larger than the sum of its proper divisors (85009009).

401207855 is a wasteful number, since it uses less digits than its factorization.

401207855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794577.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 401207855 is about 20030.1736138257. The cubic root of 401207855 is about 737.5471838049.

Adding to 401207855 its reverse (558702104), we get a palindrome (959909959).

The spelling of 401207855 in words is "four hundred one million, two hundred seven thousand, eight hundred fifty-five".