2253636420 has 72 divisors (see below), whose sum is σ = 7340425344. Its totient is φ = 515116224.

The previous prime is 2253636409. The next prime is 2253636421. The reversal of 2253636420 is 246363522.

It is a super-2 number, since 2×2253636420² = 10157754227100832800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2253636421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 380332 + ... + 386211.

It is an arithmetic number, because the mean of its divisors is an integer number (101950352).

Almost surely, 2^2253636420 is an apocalyptic number.

2253636420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2253636420 is an abundant number, since it is smaller than the sum of its proper divisors (5086788924).

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

2253636420 is a wasteful number, since it uses less digits than its factorization.

2253636420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766569 (or 766560 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

The square root of 2253636420 is about 47472.4806598518. The cubic root of 2253636420 is about 1311.0762516879.

Adding to 2253636420 its reverse (246363522), we get a palindrome (2499999942).

The spelling of 2253636420 in words is "two billion, two hundred fifty-three million, six hundred thirty-six thousand, four hundred twenty".