1406069 has 4 divisors (see below), whose sum is σ = 1606944. Its totient is φ = 1205196.

The previous prime is 1406051. The next prime is 1406071. The reversal of 1406069 is 9606041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9606041 = 751 ⋅12791.

It is a cyclic number.

It is not a de Polignac number, because 1406069 - 2⁸ = 1405813 is a prime.

It is a super-2 number, since 2×1406069² = 3954060065522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100427 + ... + 100440.

It is an arithmetic number, because the mean of its divisors is an integer number (401736).

2^1406069 is an apocalyptic number.

It is an amenable number.

1406069 is a deficient number, since it is larger than the sum of its proper divisors (200875).

1406069 is an equidigital number, since it uses as much as digits as its factorization.

1406069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200874.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1406069 is about 1185.7778038064. Note that the first 3 decimals coincide. The cubic root of 1406069 is about 112.0303117362.

The spelling of 1406069 in words is "one million, four hundred six thousand, sixty-nine".