1423640003 has 8 divisors (see below), whose sum is σ = 1432556928. Its totient is φ = 1414740544.

The previous prime is 1423639991. The next prime is 1423640017. The reversal of 1423640003 is 3000463241.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1423640003 - 2¹⁸ = 1423377859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423640033) 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, 183950 + ... + 191532.

It is an arithmetic number, because the mean of its divisors is an integer number (179069616).

Almost surely, 2^1423640003 is an apocalyptic number.

1423640003 is a deficient number, since it is larger than the sum of its proper divisors (8916925).

1423640003 is an equidigital number, since it uses as much as digits as its factorization.

1423640003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8733.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1423640003 is about 37731.1542760091. The cubic root of 1423640003 is about 1124.9504512828.

The spelling of 1423640003 in words is "one billion, four hundred twenty-three million, six hundred forty thousand, three".