1406769 has 16 divisors (see below), whose sum is σ = 2308992. Its totient is φ = 741888.

The previous prime is 1406707. The next prime is 1406771. The reversal of 1406769 is 9676041.

It is a happy number.

It is not a de Polignac number, because 1406769 - 2¹¹ = 1404721 is a prime.

It is a super-2 number, since 2×1406769² = 3957998038722, which contains 22 as substring.

1406769 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1406789) 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, 2304 + ... + 2849.

It is an arithmetic number, because the mean of its divisors is an integer number (144312).

2^1406769 is an apocalyptic number.

It is an amenable number.

1406769 is a deficient number, since it is larger than the sum of its proper divisors (902223).

1406769 is a wasteful number, since it uses less digits than its factorization.

1406769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5176.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 1406769 is about 1186.0729319903. The cubic root of 1406769 is about 112.0488997779.

The spelling of 1406769 in words is "one million, four hundred six thousand, seven hundred sixty-nine".