7620003888 has 80 divisors (see below), whose sum is σ = 22581054720. Its totient is φ = 2169024768.

The previous prime is 7620003871. The next prime is 7620003901. The reversal of 7620003888 is 8883000267.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 48231 + ... + 132537.

It is an arithmetic number, because the mean of its divisors is an integer number (282263184).

Almost surely, 2^7620003888 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 7620003888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11290527360).

7620003888 is an abundant number, since it is smaller than the sum of its proper divisors (14961050832).

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

7620003888 is a wasteful number, since it uses less digits than its factorization.

7620003888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84594 (or 84588 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 7620003888 is about 87292.6336411040. The cubic root of 7620003888 is about 1967.8186138927.

The spelling of 7620003888 in words is "seven billion, six hundred twenty million, three thousand, eight hundred eighty-eight".