10401855 has 16 divisors (see below), whose sum is σ = 16879104. Its totient is φ = 5468960.

The previous prime is 10401803. The next prime is 10401857. The reversal of 10401855 is 55810401.

It is not a de Polignac number, because 10401855 - 2¹² = 10397759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10401857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3819 + ... + 5948.

It is an arithmetic number, because the mean of its divisors is an integer number (1054944).

Almost surely, 2^10401855 is an apocalyptic number.

10401855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10401855 is a deficient number, since it is larger than the sum of its proper divisors (6477249).

10401855 is an equidigital number, since it uses as much as digits as its factorization.

10401855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9846.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 10401855 is about 3225.1906920367. The cubic root of 10401855 is about 218.2915536215.

The spelling of 10401855 in words is "ten million, four hundred one thousand, eight hundred fifty-five".