227290349538 has 90 divisors (see below), whose sum is σ = 592560300123. Its totient is φ = 64927963800.

The previous prime is 227290349527. The next prime is 227290349551. The reversal of 227290349538 is 835943092722.

227290349538 is a `hidden beast` number, since 2 + 2 + 7 + 290 + 349 + 5 + 3 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 113645174769 + 113645174769 = 337113^2 + 337113^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=337113.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 42473563 + ... + 42478913.

Almost surely, 2^227290349538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227290349538

227290349538 is an abundant number, since it is smaller than the sum of its proper divisors (365269950585).

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

227290349538 is an frugal number, since it uses more digits than its factorization.

227290349538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10730 (or 5363 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 227290349538 in words is "two hundred twenty-seven billion, two hundred ninety million, three hundred forty-nine thousand, five hundred thirty-eight".