4431011420 has 48 divisors (see below), whose sum is σ = 10224144000. Its totient is φ = 1599673920.

The previous prime is 4431011399. The next prime is 4431011437. The reversal of 4431011420 is 241101344.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4431011392 and 4431011401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41870 + ... + 103029.

It is an arithmetic number, because the mean of its divisors is an integer number (213003000).

Almost surely, 2^4431011420 is an apocalyptic number.

It is an amenable number.

4431011420 is an abundant number, since it is smaller than the sum of its proper divisors (5793132580).

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

4431011420 is a wasteful number, since it uses less digits than its factorization.

4431011420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145058 (or 145056 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4431011420 is about 66565.8427423555. The cubic root of 4431011420 is about 1642.4832769059.

Adding to 4431011420 its reverse (241101344), we get a palindrome (4672112764).

The spelling of 4431011420 in words is "four billion, four hundred thirty-one million, eleven thousand, four hundred twenty".