424231001403440 has 80 divisors (see below), whose sum is σ = 1229718954735360. Its totient is φ = 132227844591360.

The previous prime is 424231001403431. The next prime is 424231001403449. The reversal of 424231001403440 is 44304100132424.

It is an interprime number because it is at equal distance from previous prime (424231001403431) and next prime (424231001403449).

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

It is a super-2 number, since 2×424231001403440² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 424231001403397 and 424231001403406.

It is not an unprimeable number, because it can be changed into a prime (424231001403449) 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, 34434328370 + ... + 34434340689.

It is an arithmetic number, because the mean of its divisors is an integer number (15371486934192).

Almost surely, 2^{424231001403440} is an apocalyptic number.

424231001403440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424231001403440 is an abundant number, since it is smaller than the sum of its proper divisors (805487953331920).

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

424231001403440 is a wasteful number, since it uses less digits than its factorization.

424231001403440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68868669090 (or 68868669084 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 424231001403440 its reverse (44304100132424), we get a palindrome (468535101535864).

The spelling of 424231001403440 in words is "four hundred twenty-four trillion, two hundred thirty-one billion, one million, four hundred three thousand, four hundred forty".