228072762 has 36 divisors (see below), whose sum is σ = 511972110. Its totient is φ = 73291680.

The previous prime is 228072683. The next prime is 228072781. The reversal of 228072762 is 267270822.

228072762 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 227074761 + 998001 = 15069^2 + 999^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 344712 + ... + 345372.

Almost surely, 2^228072762 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228072762, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255986055).

228072762 is an abundant number, since it is smaller than the sum of its proper divisors (283899348).

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

228072762 is an equidigital number, since it uses as much as digits as its factorization.

228072762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 228072762 is about 15102.0780689281. The cubic root of 228072762 is about 610.9764545649.

The spelling of 228072762 in words is "two hundred twenty-eight million, seventy-two thousand, seven hundred sixty-two".