1424202440 has 32 divisors (see below), whose sum is σ = 3213994680. Its totient is φ = 567985152.

The previous prime is 1424202433. The next prime is 1424202449. The reversal of 1424202440 is 442024241.

It can be written as a sum of positive squares in 4 ways, for example, as 520478596 + 903723844 = 22814^2 + 30062^2 .

It is not an unprimeable number, because it can be changed into a prime (1424202449) 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, 39347 + ... + 66306.

Almost surely, 2^1424202440 is an apocalyptic number.

1424202440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1424202440 is an abundant number, since it is smaller than the sum of its proper divisors (1789792240).

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

1424202440 is a wasteful number, since it uses less digits than its factorization.

1424202440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106001 (or 105997 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1424202440 is about 37738.6067575368. The cubic root of 1424202440 is about 1125.0985763827.

Adding to 1424202440 its reverse (442024241), we get a palindrome (1866226681).

The spelling of 1424202440 in words is "one billion, four hundred twenty-four million, two hundred two thousand, four hundred forty".