227142720 has 336 divisors, whose sum is σ = 941466240. Its totient is φ = 49102848.

The previous prime is 227142709. The next prime is 227142757. The reversal of 227142720 is 27241722.

It is a tau number, because it is divible by the number of its divisors (336).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 382744 + ... + 383336.

Almost surely, 2^227142720 is an apocalyptic number.

227142720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227142720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470733120).

227142720 is an abundant number, since it is smaller than the sum of its proper divisors (714323520).

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

227142720 is a wasteful number, since it uses less digits than its factorization.

227142720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 227142720 is about 15071.2547586457. The cubic root of 227142720 is about 610.1448370578.

The spelling of 227142720 in words is "two hundred twenty-seven million, one hundred forty-two thousand, seven hundred twenty".