10661406 has 32 divisors (see below), whose sum is σ = 24476928. Its totient is φ = 3032640.

The previous prime is 10661401. The next prime is 10661423. The reversal of 10661406 is 60416601.

10661406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10661406² = 227331155793672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10661401) 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, 12741 + ... + 13551.

It is an arithmetic number, because the mean of its divisors is an integer number (764904).

Almost surely, 2^10661406 is an apocalyptic number.

10661406 is an abundant number, since it is smaller than the sum of its proper divisors (13815522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10661406 is a wasteful number, since it uses less digits than its factorization.

10661406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 10661406 is about 3265.1808525716. The cubic root of 10661406 is about 220.0922891034.

The spelling of 10661406 in words is "ten million, six hundred sixty-one thousand, four hundred six".