227630640 has 80 divisors (see below), whose sum is σ = 742809600. Its totient is φ = 57505536.

The previous prime is 227630603. The next prime is 227630653. The reversal of 227630640 is 46036722.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 227630598 and 227630607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20400 + ... + 29519.

It is an arithmetic number, because the mean of its divisors is an integer number (9285120).

Almost surely, 2^227630640 is an apocalyptic number.

227630640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227630640 is an abundant number, since it is smaller than the sum of its proper divisors (515178960).

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

227630640 is a wasteful number, since it uses less digits than its factorization.

227630640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49954 (or 49948 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 227630640 is about 15087.4331812936. The cubic root of 227630640 is about 610.5814039305.

The spelling of 227630640 in words is "two hundred twenty-seven million, six hundred thirty thousand, six hundred forty".