2257612020 has 48 divisors (see below), whose sum is σ = 7023683520. Its totient is φ = 602029728.

The previous prime is 2257611997. The next prime is 2257612043. The reversal of 2257612020 is 202167522.

2257612020 is a `hidden beast` number, since 2 + 25 + 7 + 612 + 0 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (2257611997) and next prime (2257612043).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 2089842 + ... + 2090921.

It is an arithmetic number, because the mean of its divisors is an integer number (146326740).

Almost surely, 2^2257612020 is an apocalyptic number.

2257612020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2257612020 is an abundant number, since it is smaller than the sum of its proper divisors (4766071500).

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

2257612020 is a wasteful number, since it uses less digits than its factorization.

2257612020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180781 (or 4180773 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2257612020 is about 47514.3348895888. The cubic root of 2257612020 is about 1311.8467475727.

Adding to 2257612020 its reverse (202167522), we get a palindrome (2459779542).

It can be divided in two parts, 22576 and 12020, that added together give a square (34596 = 186²).

The spelling of 2257612020 in words is "two billion, two hundred fifty-seven million, six hundred twelve thousand, twenty".