1423020 has 48 divisors (see below), whose sum is σ = 4098528. Its totient is φ = 368640.

The previous prime is 1423003. The next prime is 1423039. The reversal of 1423020 is 203241.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1422987 and 1423005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1900 + ... + 2540.

It is an arithmetic number, because the mean of its divisors is an integer number (85386).

2^1423020 is an apocalyptic number.

1423020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1423020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2049264).

1423020 is an abundant number, since it is smaller than the sum of its proper divisors (2675508).

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

1423020 is a wasteful number, since it uses less digits than its factorization.

1423020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1423020 is about 1192.9040196093. The cubic root of 1423020 is about 112.4787120214.

Adding to 1423020 its reverse (203241), we get a palindrome (1626261).

The spelling of 1423020 in words is "one million, four hundred twenty-three thousand, twenty".