1423043988 has 24 divisors (see below), whose sum is σ = 3495196320. Its totient is φ = 449382240.

The previous prime is 1423043977. The next prime is 1423043989. The reversal of 1423043988 is 8893403241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423043989) 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, 3120483 + ... + 3120938.

It is an arithmetic number, because the mean of its divisors is an integer number (145633180).

Almost surely, 2^1423043988 is an apocalyptic number.

It is an amenable number.

1423043988 is an abundant number, since it is smaller than the sum of its proper divisors (2072152332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1423043988 is a wasteful number, since it uses less digits than its factorization.

1423043988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6241447 (or 6241445 counting only the distinct ones).

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

The square root of 1423043988 is about 37723.2552678053. The cubic root of 1423043988 is about 1124.7934403972.

The spelling of 1423043988 in words is "one billion, four hundred twenty-three million, forty-three thousand, nine hundred eighty-eight".