1423567988 has 24 divisors (see below), whose sum is σ = 2573163264. Its totient is φ = 688406400.

The previous prime is 1423567973. The next prime is 1423567991. The reversal of 1423567988 is 8897653241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333548 + ... + 337788.

It is an arithmetic number, because the mean of its divisors is an integer number (107215136).

Almost surely, 2^1423567988 is an apocalyptic number.

It is an amenable number.

1423567988 is a deficient number, since it is larger than the sum of its proper divisors (1149595276).

1423567988 is a wasteful number, since it uses less digits than its factorization.

1423567988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6983 (or 6981 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The square root of 1423567988 is about 37730.1999464620. The cubic root of 1423567988 is about 1124.9314823785.

The spelling of 1423567988 in words is "one billion, four hundred twenty-three million, five hundred sixty-seven thousand, nine hundred eighty-eight".