2240284440 has 64 divisors (see below), whose sum is σ = 6937666560. Its totient is φ = 578136960.

The previous prime is 2240284421. The next prime is 2240284441. The reversal of 2240284440 is 444820422.

It is a super-2 number, since 2×2240284440² = 10037748744212227200, which contains 22 as substring.

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 = 2240284398 and 2240284407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240284441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297394 + ... + 304833.

It is an arithmetic number, because the mean of its divisors is an integer number (108401040).

Almost surely, 2^2240284440 is an apocalyptic number.

2240284440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2240284440 is an abundant number, since it is smaller than the sum of its proper divisors (4697382120).

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

2240284440 is a wasteful number, since it uses less digits than its factorization.

2240284440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602272 (or 602268 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 30.

The square root of 2240284440 is about 47331.6431153621. The cubic root of 2240284440 is about 1308.4819039993.

The spelling of 2240284440 in words is "two billion, two hundred forty million, two hundred eighty-four thousand, four hundred forty".