7620021112 has 64 divisors (see below), whose sum is σ = 16518090240. Its totient is φ = 3256972800.

The previous prime is 7620021109. The next prime is 7620021137. The reversal of 7620021112 is 2111200267.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 2851537 + ... + 2854207.

It is an arithmetic number, because the mean of its divisors is an integer number (258095160).

Almost surely, 2^7620021112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7620021112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8259045120).

7620021112 is an abundant number, since it is smaller than the sum of its proper divisors (8898069128).

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

7620021112 is a wasteful number, since it uses less digits than its factorization.

7620021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4612 (or 4608 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 7620021112 is about 87292.7322977119. The cubic root of 7620021112 is about 1967.8200965552.

Adding to 7620021112 its reverse (2111200267), we get a palindrome (9731221379).

The spelling of 7620021112 in words is "seven billion, six hundred twenty million, twenty-one thousand, one hundred twelve".