226505540 has 12 divisors (see below), whose sum is σ = 475661676. Its totient is φ = 90602208.

The previous prime is 226505507. The next prime is 226505557. The reversal of 226505540 is 45505622.

It can be written as a sum of positive squares in 2 ways, for example, as 143185156 + 83320384 = 11966^2 + 9128^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5662619 + ... + 5662658.

It is an arithmetic number, because the mean of its divisors is an integer number (39638473).

Almost surely, 2^226505540 is an apocalyptic number.

226505540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226505540 is an abundant number, since it is smaller than the sum of its proper divisors (249156136).

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

226505540 is a wasteful number, since it uses less digits than its factorization.

226505540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11325286 (or 11325284 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 226505540 is about 15050.1009963389. The cubic root of 226505540 is about 609.5737773261.

The spelling of 226505540 in words is "two hundred twenty-six million, five hundred five thousand, five hundred forty".