40282228 has 24 divisors (see below), whose sum is σ = 82440512. Its totient is φ = 16861824.

The previous prime is 40282219. The next prime is 40282259. The reversal of 40282228 is 82228204.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 40282196 and 40282205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15525 + ... + 17932.

Almost surely, 2^40282228 is an apocalyptic number.

It is an amenable number.

40282228 is an abundant number, since it is smaller than the sum of its proper divisors (42158284).

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

40282228 is a wasteful number, since it uses less digits than its factorization.

40282228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33511 (or 33509 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 40282228 is about 6346.8281842193. The cubic root of 40282228 is about 342.7976434780.

The spelling of 40282228 in words is "forty million, two hundred eighty-two thousand, two hundred twenty-eight".