1424530440 has 192 divisors, whose sum is σ = 4727127600. Its totient is φ = 371982336.

The previous prime is 1424530433. The next prime is 1424530447. The reversal of 1424530440 is 440354241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1424530433) and next prime (1424530447).

It can be written as a sum of positive squares in 8 ways, for example, as 1152874116 + 271656324 = 33954^2 + 16482^2 .

It is not an unprimeable number, because it can be changed into a prime (1424530447) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5542792 + ... + 5543048.

Almost surely, 2^1424530440 is an apocalyptic number.

1424530440 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 1424530440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2363563800).

1424530440 is an abundant number, since it is smaller than the sum of its proper divisors (3302597160).

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

1424530440 is a wasteful number, since it uses less digits than its factorization.

1424530440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 1424530440 is about 37742.9521897797. The cubic root of 1424530440 is about 1125.1849414472.

Adding to 1424530440 its reverse (440354241), we get a palindrome (1864884681).

The spelling of 1424530440 in words is "one billion, four hundred twenty-four million, five hundred thirty thousand, four hundred forty".