2290865040 has 60 divisors (see below), whose sum is σ = 7693490844. Its totient is φ = 610897152.

The previous prime is 2290865011. The next prime is 2290865051. The reversal of 2290865040 is 405680922.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1550154384 + 740710656 = 39372^2 + 27216^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2290864986 and 2290865004.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1590159 + ... + 1591598.

Almost surely, 2^2290865040 is an apocalyptic number.

2290865040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2290865040 is an abundant number, since it is smaller than the sum of its proper divisors (5402625804).

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

2290865040 is a wasteful number, since it uses less digits than its factorization.

2290865040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3181776 (or 3181767 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2290865040 is about 47862.9819380281. The cubic root of 2290865040 is about 1318.2562373926.

The spelling of 2290865040 in words is "two billion, two hundred ninety million, eight hundred sixty-five thousand, forty".