227557152 has 72 divisors (see below), whose sum is σ = 649119744. Its totient is φ = 75617664.

The previous prime is 227557117. The next prime is 227557157. The reversal of 227557152 is 251755722.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×227557152² = 103564514852702208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (227557157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109273 + ... + 111335.

It is an arithmetic number, because the mean of its divisors is an integer number (9015552).

Almost surely, 2^227557152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227557152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324559872).

227557152 is an abundant number, since it is smaller than the sum of its proper divisors (421562592).

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

227557152 is a wasteful number, since it uses less digits than its factorization.

227557152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462 (or 2451 counting only the distinct ones).

The product of its digits is 49000, while the sum is 36.

The square root of 227557152 is about 15084.9975803777. The cubic root of 227557152 is about 610.5156904048.

The spelling of 227557152 in words is "two hundred twenty-seven million, five hundred fifty-seven thousand, one hundred fifty-two".