1424355240 has 256 divisors, whose sum is σ = 5370624000. Its totient is φ = 293575680.

The previous prime is 1424355209. The next prime is 1424355277. The reversal of 1424355240 is 425534241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1424355198 and 1424355207.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1283806 + ... + 1284914.

It is an arithmetic number, because the mean of its divisors is an integer number (20979000).

Almost surely, 2^1424355240 is an apocalyptic number.

1424355240 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 1424355240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2685312000).

1424355240 is an abundant number, since it is smaller than the sum of its proper divisors (3946268760).

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

1424355240 is a wasteful number, since it uses less digits than its factorization.

1424355240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280 (or 1276 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 1424355240 is about 37740.6311552947. The cubic root of 1424355240 is about 1125.1388115136.

Adding to 1424355240 its reverse (425534241), we get a palindrome (1849889481).

The spelling of 1424355240 in words is "one billion, four hundred twenty-four million, three hundred fifty-five thousand, two hundred forty".