1406643423 has 8 divisors (see below), whose sum is σ = 1876409136. Its totient is φ = 937320000.

The previous prime is 1406643421. The next prime is 1406643481. The reversal of 1406643423 is 3243466041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1406643423 - 2¹ = 1406643421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406643421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103078 + ... + 115923.

It is an arithmetic number, because the mean of its divisors is an integer number (234551142).

Almost surely, 2^1406643423 is an apocalyptic number.

1406643423 is a deficient number, since it is larger than the sum of its proper divisors (469765713).

1406643423 is a wasteful number, since it uses less digits than its factorization.

1406643423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221145.

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

The square root of 1406643423 is about 37505.2452731615. The cubic root of 1406643423 is about 1120.4556561686.

The spelling of 1406643423 in words is "one billion, four hundred six million, six hundred forty-three thousand, four hundred twenty-three".