1980903423 has 8 divisors (see below), whose sum is σ = 2641479808. Its totient is φ = 1320464664.

The previous prime is 1980903401. The next prime is 1980903443. The reversal of 1980903423 is 3243090891.

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

It is not a de Polignac number, because 1980903423 - 2⁵ = 1980903391 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 (1980903443) 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, 5940 + ... + 63222.

It is an arithmetic number, because the mean of its divisors is an integer number (330184976).

Almost surely, 2^1980903423 is an apocalyptic number.

1980903423 is a deficient number, since it is larger than the sum of its proper divisors (660576385).

1980903423 is a wasteful number, since it uses less digits than its factorization.

1980903423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68813.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 1980903423 is about 44507.3412259146. The cubic root of 1980903423 is about 1255.8981888937.

The spelling of 1980903423 in words is "one billion, nine hundred eighty million, nine hundred three thousand, four hundred twenty-three".