4522021372 has 24 divisors (see below), whose sum is σ = 8634810240. Its totient is φ = 2055021360.

The previous prime is 4522021363. The next prime is 4522021379. The reversal of 4522021372 is 2731202254.

It is a self number, because there is not a number n which added to its sum of digits gives 4522021372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4522021379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283473 + ... + 298999.

It is an arithmetic number, because the mean of its divisors is an integer number (359783760).

Almost surely, 2^4522021372 is an apocalyptic number.

It is an amenable number.

4522021372 is a deficient number, since it is larger than the sum of its proper divisors (4112788868).

4522021372 is a wasteful number, since it uses less digits than its factorization.

4522021372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22161 (or 22159 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 4522021372 is about 67245.9766231408. The cubic root of 4522021372 is about 1653.6523162755.

The spelling of 4522021372 in words is "four billion, five hundred twenty-two million, twenty-one thousand, three hundred seventy-two".