2245512440 has 16 divisors (see below), whose sum is σ = 5052403080. Its totient is φ = 898204960.

The previous prime is 2245512431. The next prime is 2245512443. The reversal of 2245512440 is 442155422.

It is a super-2 number, since 2×2245512440² = 10084652236389507200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245512443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28068866 + ... + 28068945.

Almost surely, 2^2245512440 is an apocalyptic number.

2245512440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2245512440 is an abundant number, since it is smaller than the sum of its proper divisors (2806890640).

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

2245512440 is a wasteful number, since it uses less digits than its factorization.

2245512440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56137822 (or 56137818 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 2245512440 is about 47386.8382570519. The cubic root of 2245512440 is about 1309.4989517903.

Adding to 2245512440 its reverse (442155422), we get a palindrome (2687667862).

The spelling of 2245512440 in words is "two billion, two hundred forty-five million, five hundred twelve thousand, four hundred forty".