10401638 has 16 divisors (see below), whose sum is σ = 16885680. Its totient is φ = 4777056.

The previous prime is 10401619. The next prime is 10401649. The reversal of 10401638 is 83610401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5081 + ... + 6827.

It is an arithmetic number, because the mean of its divisors is an integer number (1055355).

Almost surely, 2^10401638 is an apocalyptic number.

10401638 is a deficient number, since it is larger than the sum of its proper divisors (6484042).

10401638 is a wasteful number, since it uses less digits than its factorization.

10401638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 10401638 is about 3225.1570504396. The cubic root of 10401638 is about 218.2900356359.

The spelling of 10401638 in words is "ten million, four hundred one thousand, six hundred thirty-eight".