1423132020 has 36 divisors (see below), whose sum is σ = 4316834340. Its totient is φ = 379501824.

The previous prime is 1423132001. The next prime is 1423132031. The reversal of 1423132020 is 202313241.

It can be written as a sum of positive squares in 2 ways, for example, as 912281616 + 510850404 = 30204^2 + 22602^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1423131984 and 1423132002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3952965 + ... + 3953324.

It is an arithmetic number, because the mean of its divisors is an integer number (119912065).

Almost surely, 2^1423132020 is an apocalyptic number.

1423132020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423132020 is an abundant number, since it is smaller than the sum of its proper divisors (2893702320).

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

1423132020 is a wasteful number, since it uses less digits than its factorization.

1423132020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7906304 (or 7906299 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1423132020 is about 37724.4220631675. The cubic root of 1423132020 is about 1124.8166338181.

Adding to 1423132020 its reverse (202313241), we get a palindrome (1625445261).

The spelling of 1423132020 in words is "one billion, four hundred twenty-three million, one hundred thirty-two thousand, twenty".