1406644323 has 48 divisors (see below), whose sum is σ = 2240499456. Its totient is φ = 782429760.

The previous prime is 1406644321. The next prime is 1406644331. The reversal of 1406644323 is 3234466041.

It is not a de Polignac number, because 1406644323 - 2¹ = 1406644321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1406644321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 922840 + ... + 924362.

It is an arithmetic number, because the mean of its divisors is an integer number (46677072).

Almost surely, 2^1406644323 is an apocalyptic number.

1406644323 is a deficient number, since it is larger than the sum of its proper divisors (833855133).

1406644323 is a wasteful number, since it uses less digits than its factorization.

1406644323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704 (or 1697 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 1406644323 is about 37505.2572714813. The cubic root of 1406644323 is about 1120.4558951322.

The spelling of 1406644323 in words is "one billion, four hundred six million, six hundred forty-four thousand, three hundred twenty-three".