227207204742 has 64 divisors (see below), whose sum is σ = 538553433600. Its totient is φ = 62524465920.

The previous prime is 227207204711. The next prime is 227207204743. The reversal of 227207204742 is 247402702722.

It is a super-2 number, since 2×227207204742² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 227207204742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227207204743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270117 + ... + 726207.

It is an arithmetic number, because the mean of its divisors is an integer number (8414897400).

Almost surely, 2^227207204742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227207204742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269276716800).

227207204742 is an abundant number, since it is smaller than the sum of its proper divisors (311346228858).

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

227207204742 is a wasteful number, since it uses less digits than its factorization.

227207204742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456541.

The product of its (nonzero) digits is 175616, while the sum is 39.

The spelling of 227207204742 in words is "two hundred twenty-seven billion, two hundred seven million, two hundred four thousand, seven hundred forty-two".