4123621072 has 20 divisors (see below), whose sum is σ = 8410017280. Its totient is φ = 1953294048.

The previous prime is 4123621057. The next prime is 4123621087. The reversal of 4123621072 is 2701263214.

It is an interprime number because it is at equal distance from previous prime (4123621057) and next prime (4123621087).

It is a self number, because there is not a number n which added to its sum of digits gives 4123621072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6781968 + ... + 6782575.

It is an arithmetic number, because the mean of its divisors is an integer number (420500864).

Almost surely, 2^4123621072 is an apocalyptic number.

It is an amenable number.

4123621072 is an abundant number, since it is smaller than the sum of its proper divisors (4286396208).

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

4123621072 is a wasteful number, since it uses less digits than its factorization.

4123621072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13564570 (or 13564564 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 4123621072 is about 64215.4270561210. The cubic root of 4123621072 is about 1603.5884396713.

Adding to 4123621072 its reverse (2701263214), we get a palindrome (6824884286).

The spelling of 4123621072 in words is "four billion, one hundred twenty-three million, six hundred twenty-one thousand, seventy-two".