1438980423 has 16 divisors (see below), whose sum is σ = 1995455616. Its totient is φ = 921644640.

The previous prime is 1438980331. The next prime is 1438980437. The reversal of 1438980423 is 3240898341.

It is not a de Polignac number, because 1438980423 - 2⁸ = 1438980167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438980443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83565 + ... + 99302.

It is an arithmetic number, because the mean of its divisors is an integer number (124715976).

Almost surely, 2^1438980423 is an apocalyptic number.

1438980423 is a deficient number, since it is larger than the sum of its proper divisors (556475193).

1438980423 is a wasteful number, since it uses less digits than its factorization.

1438980423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182974.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 1438980423 is about 37933.8954366672. The cubic root of 1438980423 is about 1128.9766554280.

The spelling of 1438980423 in words is "one billion, four hundred thirty-eight million, nine hundred eighty thousand, four hundred twenty-three".