1423689860 has 12 divisors (see below), whose sum is σ = 2989748748. Its totient is φ = 569475936.

The previous prime is 1423689853. The next prime is 1423689913. The reversal of 1423689860 is 689863241.

It can be written as a sum of positive squares in 2 ways, for example, as 1005650944 + 418038916 = 31712^2 + 20446^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35592227 + ... + 35592266.

It is an arithmetic number, because the mean of its divisors is an integer number (249145729).

Almost surely, 2^1423689860 is an apocalyptic number.

1423689860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423689860 is an abundant number, since it is smaller than the sum of its proper divisors (1566058888).

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

1423689860 is a wasteful number, since it uses less digits than its factorization.

1423689860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71184502 (or 71184500 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 1423689860 is about 37731.8149576720. The cubic root of 1423689860 is about 1124.9635833479.

The spelling of 1423689860 in words is "one billion, four hundred twenty-three million, six hundred eighty-nine thousand, eight hundred sixty".