1423819824 has 40 divisors (see below), whose sum is σ = 4203659520. Its totient is φ = 406805568.

The previous prime is 1423819823. The next prime is 1423819841. The reversal of 1423819824 is 4289183241.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1423819823) 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, 2118444 + ... + 2119115.

It is an arithmetic number, because the mean of its divisors is an integer number (105091488).

Almost surely, 2^1423819824 is an apocalyptic number.

1423819824 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1423819824 is an abundant number, since it is smaller than the sum of its proper divisors (2779839696).

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

1423819824 is a wasteful number, since it uses less digits than its factorization.

1423819824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237577 (or 4237571 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 1423819824 is about 37733.5371254803. The cubic root of 1423819824 is about 1124.9978137241.

The spelling of 1423819824 in words is "one billion, four hundred twenty-three million, eight hundred nineteen thousand, eight hundred twenty-four".