1423788 has 24 divisors (see below), whose sum is σ = 3380160. Its totient is φ = 466320.

The previous prime is 1423781. The next prime is 1423789. The reversal of 1423788 is 8873241.

It is not an unprimeable number, because it can be changed into a prime (1423781) 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, 298 + ... + 1713.

It is an arithmetic number, because the mean of its divisors is an integer number (140840).

2^1423788 is an apocalyptic number.

It is an amenable number.

1423788 is an abundant number, since it is smaller than the sum of its proper divisors (1956372).

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

1423788 is a wasteful number, since it uses less digits than its factorization.

1423788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077 (or 2075 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 1423788 is about 1193.2258797059. The cubic root of 1423788 is about 112.4989431999.

It can be divided in two parts, 1423 and 788, that added together give a triangular number (2211 = T₆₆).

The spelling of 1423788 in words is "one million, four hundred twenty-three thousand, seven hundred eighty-eight".