2257066020 has 96 divisors (see below), whose sum is σ = 6920484480. Its totient is φ = 545090560.

The previous prime is 2257065989. The next prime is 2257066037. The reversal of 2257066020 is 206607522.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171184 + ... + 183896.

It is an arithmetic number, because the mean of its divisors is an integer number (72088380).

Almost surely, 2^2257066020 is an apocalyptic number.

2257066020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2257066020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3460242240).

2257066020 is an abundant number, since it is smaller than the sum of its proper divisors (4663418460).

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

2257066020 is a wasteful number, since it uses less digits than its factorization.

2257066020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13005 (or 13003 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 2257066020 is about 47508.5889076912. The cubic root of 2257066020 is about 1311.7409830055.

The spelling of 2257066020 in words is "two billion, two hundred fifty-seven million, sixty-six thousand, twenty".