4021251164 has 24 divisors (see below), whose sum is σ = 8044044288. Its totient is φ = 1723062960.

The previous prime is 4021251121. The next prime is 4021251193. The reversal of 4021251164 is 4611521204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185477 + ... + 206019.

It is an arithmetic number, because the mean of its divisors is an integer number (335168512).

Almost surely, 2^4021251164 is an apocalyptic number.

It is an amenable number.

4021251164 is an abundant number, since it is smaller than the sum of its proper divisors (4022793124).

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

4021251164 is a wasteful number, since it uses less digits than its factorization.

4021251164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27545 (or 27543 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 4021251164 is about 63413.3358529576. The cubic root of 4021251164 is about 1590.2072648864.

Adding to 4021251164 its reverse (4611521204), we get a palindrome (8632772368).

The spelling of 4021251164 in words is "four billion, twenty-one million, two hundred fifty-one thousand, one hundred sixty-four".