2275985840 has 40 divisors (see below), whose sum is σ = 5602944960. Its totient is φ = 856841216.

The previous prime is 2275985827. The next prime is 2275985867. The reversal of 2275985840 is 485895722.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2275985840² = 10360223087761011200, which contains 22 as substring.

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, 835400 + ... + 838119.

It is an arithmetic number, because the mean of its divisors is an integer number (140073624).

Almost surely, 2^2275985840 is an apocalyptic number.

2275985840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2275985840 is an abundant number, since it is smaller than the sum of its proper divisors (3326959120).

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

2275985840 is a wasteful number, since it uses less digits than its factorization.

2275985840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673549 (or 1673543 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 50.

The square root of 2275985840 is about 47707.2933627553. The cubic root of 2275985840 is about 1315.3960052013.

The spelling of 2275985840 in words is "two billion, two hundred seventy-five million, nine hundred eighty-five thousand, eight hundred forty".