2265045240 has 32 divisors (see below), whose sum is σ = 6795136080. Its totient is φ = 604012032.

The previous prime is 2265045239. The next prime is 2265045257. The reversal of 2265045240 is 425405622.

It is a happy number.

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 = 2265045198 and 2265045207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9437569 + ... + 9437808.

Almost surely, 2^2265045240 is an apocalyptic number.

2265045240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2265045240 is an abundant number, since it is smaller than the sum of its proper divisors (4530090840).

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

2265045240 is a wasteful number, since it uses less digits than its factorization.

2265045240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18875391 (or 18875387 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2265045240 is about 47592.4914245934. The cubic root of 2265045240 is about 1313.2849284011.

The spelling of 2265045240 in words is "two billion, two hundred sixty-five million, forty-five thousand, two hundred forty".