1423710720 has 240 divisors, whose sum is σ = 5016489192. Its totient is φ = 373063680.

The previous prime is 1423710709. The next prime is 1423710727. The reversal of 1423710720 is 270173241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 252428544 + 1171282176 = 15888^2 + 34224^2 .

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423710727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1404934 + ... + 1405946.

Almost surely, 2^1423710720 is an apocalyptic number.

1423710720 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 1423710720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2508244596).

1423710720 is an abundant number, since it is smaller than the sum of its proper divisors (3592778472).

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

1423710720 is a wasteful number, since it uses less digits than its factorization.

1423710720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103 (or 1084 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 1423710720 is about 37732.0913812102. The cubic root of 1423710720 is about 1124.9690776686.

Adding to 1423710720 its reverse (270173241), we get a palindrome (1693883961).

The spelling of 1423710720 in words is "one billion, four hundred twenty-three million, seven hundred ten thousand, seven hundred twenty".