1406205 has 12 divisors (see below), whose sum is σ = 2437500. Its totient is φ = 749952.

The previous prime is 1406173. The next prime is 1406213. The reversal of 1406205 is 5026041.

It is a happy number.

1406205 is a `hidden beast` number, since 1 + 40 + 620 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 710649 + 695556 = 843^2 + 834^2 .

It is not a de Polignac number, because 1406205 - 2⁵ = 1406173 is a prime.

1406205 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15580 + ... + 15669.

It is an arithmetic number, because the mean of its divisors is an integer number (203125).

2^1406205 is an apocalyptic number.

1406205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1406205 is a deficient number, since it is larger than the sum of its proper divisors (1031295).

1406205 is a wasteful number, since it uses less digits than its factorization.

1406205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31260 (or 31257 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1406205 is about 1185.8351487454. The cubic root of 1406205 is about 112.0339236099.

It can be divided in two parts, 140620 and 5, that added together give a square (140625 = 375²).

The spelling of 1406205 in words is "one million, four hundred six thousand, two hundred five".