2253444240 has 80 divisors (see below), whose sum is σ = 7148167488. Its totient is φ = 586940928.

The previous prime is 2253444239. The next prime is 2253444241. The reversal of 2253444240 is 424443522.

It is an interprime number because it is at equal distance from previous prime (2253444239) and next prime (2253444241).

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a junction number, because it is equal to n+sod(n) for n = 2253444198 and 2253444207.

It is not an unprimeable number, because it can be changed into a prime (2253444241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98859 + ... + 119498.

Almost surely, 2^2253444240 is an apocalyptic number.

2253444240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2253444240 is an abundant number, since it is smaller than the sum of its proper divisors (4894723248).

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

2253444240 is a wasteful number, since it uses less digits than its factorization.

2253444240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218416 (or 218410 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

The square root of 2253444240 is about 47470.4564966464. The cubic root of 2253444240 is about 1311.0389830622.

Adding to 2253444240 its reverse (424443522), we get a palindrome (2677887762).

The spelling of 2253444240 in words is "two billion, two hundred fifty-three million, four hundred forty-four thousand, two hundred forty".