1423388 has 6 divisors (see below), whose sum is σ = 2490936. Its totient is φ = 711692.

The previous prime is 1423381. The next prime is 1423391. The reversal of 1423388 is 8833241.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1423388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177920 + ... + 177927.

It is an arithmetic number, because the mean of its divisors is an integer number (415156).

2^1423388 is an apocalyptic number.

It is an amenable number.

1423388 is a deficient number, since it is larger than the sum of its proper divisors (1067548).

1423388 is a wasteful number, since it uses less digits than its factorization.

1423388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355851 (or 355849 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 1423388 is about 1193.0582550739. The cubic root of 1423388 is about 112.4884070359.

The spelling of 1423388 in words is "one million, four hundred twenty-three thousand, three hundred eighty-eight".