424400004240 has 80 divisors (see below), whose sum is σ = 1328666227776. Its totient is φ = 112052800000.

The previous prime is 424400004239. The next prime is 424400004247. The reversal of 424400004240 is 42400004424.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 424400004240.

It is not an unprimeable number, because it can be changed into a prime (424400004247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8729886 + ... + 8778365.

Almost surely, 2^424400004240 is an apocalyptic number.

424400004240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424400004240 is an abundant number, since it is smaller than the sum of its proper divisors (904266223536).

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

424400004240 is a wasteful number, since it uses less digits than its factorization.

424400004240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17508368 (or 17508362 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 424400004240 its reverse (42400004424), we get a palindrome (466800008664).

The spelling of 424400004240 in words is "four hundred twenty-four billion, four hundred million, four thousand, two hundred forty".