1406610 has 24 divisors (see below), whose sum is σ = 3657420. Its totient is φ = 375072.

The previous prime is 1406609. The next prime is 1406617. The reversal of 1406610 is 166041.

Added to its reverse (166041) it gives a triangular number (1572651 = T₁₇₇₃).

1406610 is a `hidden beast` number, since 1 + 4 + 0 + 661 + 0 = 666.

1406610 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in 2 ways, for example, as 1279161 + 127449 = 1131^2 + 357^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1406617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7725 + ... + 7904.

2^1406610 is an apocalyptic number.

1406610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1406610 is an abundant number, since it is smaller than the sum of its proper divisors (2250810).

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

1406610 is a wasteful number, since it uses less digits than its factorization.

1406610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15642 (or 15639 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1406610 is about 1186.0059021776. The cubic root of 1406610 is about 112.0446781784.

Adding to 1406610 its reverse (166041), we get a triangular number (1572651 = T₁₇₇₃).

It can be divided in two parts, 1406 and 610, that added together give a triangular number (2016 = T₆₃).

The spelling of 1406610 in words is "one million, four hundred six thousand, six hundred ten".