1406663023 has 4 divisors (see below), whose sum is σ = 1409135760. Its totient is φ = 1404190288.

The previous prime is 1406663017. The next prime is 1406663033. The reversal of 1406663023 is 3203666041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3203666041 = 373 ⋅8588917.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1406663023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406663033) 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, 1235515 + ... + 1236652.

It is an arithmetic number, because the mean of its divisors is an integer number (352283940).

Almost surely, 2^1406663023 is an apocalyptic number.

1406663023 is a deficient number, since it is larger than the sum of its proper divisors (2472737).

1406663023 is an equidigital number, since it uses as much as digits as its factorization.

1406663023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472736.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 1406663023 is about 37505.5065690360. The cubic root of 1406663023 is about 1120.4608602425.

The spelling of 1406663023 in words is "one billion, four hundred six million, six hundred sixty-three thousand, twenty-three".