140430424520 has 16 divisors (see below), whose sum is σ = 315968455260. Its totient is φ = 56172169792.

The previous prime is 140430424507. The next prime is 140430424529. The reversal of 140430424520 is 25424034041.

It can be written as a sum of positive squares in 2 ways, for example, as 140344639876 + 85784644 = 374626^2 + 9262^2 .

It is not an unprimeable number, because it can be changed into a prime (140430424529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1755380267 + ... + 1755380346.

Almost surely, 2^140430424520 is an apocalyptic number.

140430424520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140430424520 is an abundant number, since it is smaller than the sum of its proper divisors (175538030740).

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

140430424520 is a wasteful number, since it uses less digits than its factorization.

140430424520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510760624 (or 3510760620 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 140430424520 its reverse (25424034041), we get a palindrome (165854458561).

The spelling of 140430424520 in words is "one hundred forty billion, four hundred thirty million, four hundred twenty-four thousand, five hundred twenty".