227239540 has 48 divisors (see below), whose sum is σ = 543231360. Its totient is φ = 79038080.

The previous prime is 227239513. The next prime is 227239553. The reversal of 227239540 is 45932722.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 227239496 and 227239505.

It is a congruent number.

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, 17395 + ... + 27514.

It is an arithmetic number, because the mean of its divisors is an integer number (11317320).

Almost surely, 2^227239540 is an apocalyptic number.

227239540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227239540 is an abundant number, since it is smaller than the sum of its proper divisors (315991820).

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

227239540 is a wasteful number, since it uses less digits than its factorization.

227239540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44952 (or 44950 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 227239540 is about 15074.4664913887. The cubic root of 227239540 is about 610.2315165276.

The spelling of 227239540 in words is "two hundred twenty-seven million, two hundred thirty-nine thousand, five hundred forty".