2265140388 has 48 divisors (see below), whose sum is σ = 6086513664. Its totient is φ = 642239520.

The previous prime is 2265140359. The next prime is 2265140413. The reversal of 2265140388 is 8830415622.

It is a super-4 number, since 4×2265140388⁴ (a number of 39 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91920 + ... + 113927.

It is an arithmetic number, because the mean of its divisors is an integer number (126802368).

Almost surely, 2^2265140388 is an apocalyptic number.

2265140388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2265140388 is an abundant number, since it is smaller than the sum of its proper divisors (3821373276).

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

2265140388 is a wasteful number, since it uses less digits than its factorization.

2265140388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205992 (or 205990 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 2265140388 is about 47593.4910255594. The cubic root of 2265140388 is about 1313.3033172443.

The spelling of 2265140388 in words is "two billion, two hundred sixty-five million, one hundred forty thousand, three hundred eighty-eight".