4221501040 has 80 divisors (see below), whose sum is σ = 10154725056. Its totient is φ = 1630976000.

The previous prime is 4221501017. The next prime is 4221501059. The reversal of 4221501040 is 401051224.

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

It is a junction number, because it is equal to n+sod(n) for n = 4221500999 and 4221501017.

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, 324909 + ... + 337651.

Almost surely, 2^4221501040 is an apocalyptic number.

4221501040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4221501040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5077362528).

4221501040 is an abundant number, since it is smaller than the sum of its proper divisors (5933224016).

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

4221501040 is a wasteful number, since it uses less digits than its factorization.

4221501040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12898 (or 12892 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 4221501040 is about 64973.0793482962. The cubic root of 4221501040 is about 1616.1771670446.

Adding to 4221501040 its reverse (401051224), we get a palindrome (4622552264).

The spelling of 4221501040 in words is "four billion, two hundred twenty-one million, five hundred one thousand, forty".