227431640 has 16 divisors (see below), whose sum is σ = 511721280. Its totient is φ = 90972640.

The previous prime is 227431621. The next prime is 227431643. The reversal of 227431640 is 46134722.

227431640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227431643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2842856 + ... + 2842935.

It is an arithmetic number, because the mean of its divisors is an integer number (31982580).

Almost surely, 2^227431640 is an apocalyptic number.

227431640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227431640 is an abundant number, since it is smaller than the sum of its proper divisors (284289640).

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

227431640 is a wasteful number, since it uses less digits than its factorization.

227431640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685802 (or 5685798 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 227431640 is about 15080.8368468066. The cubic root of 227431640 is about 610.4034239007.

The spelling of 227431640 in words is "two hundred twenty-seven million, four hundred thirty-one thousand, six hundred forty".