1423520124 has 72 divisors (see below), whose sum is σ = 3712891392. Its totient is φ = 423858240.

The previous prime is 1423520113. The next prime is 1423520149. The reversal of 1423520124 is 4210253241.

It is a junction number, because it is equal to n+sod(n) for n = 1423520094 and 1423520103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51547 + ... + 74189.

It is an arithmetic number, because the mean of its divisors is an integer number (51567936).

Almost surely, 2^1423520124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1423520124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1856445696).

1423520124 is an abundant number, since it is smaller than the sum of its proper divisors (2289371268).

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

1423520124 is a wasteful number, since it uses less digits than its factorization.

1423520124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22707 (or 22692 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1423520124 is about 37729.5656481757. The cubic root of 1423520124 is about 1124.9188745451.

Adding to 1423520124 its reverse (4210253241), we get a palindrome (5633773365).

The spelling of 1423520124 in words is "one billion, four hundred twenty-three million, five hundred twenty thousand, one hundred twenty-four".