2227428 has 36 divisors (see below), whose sum is σ = 6435520. Its totient is φ = 636336.

The previous prime is 2227417. The next prime is 2227429. The reversal of 2227428 is 8247222.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2227428² = 9922870990368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2227429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4168 + ... + 4671.

2^2227428 is an apocalyptic number.

2227428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2227428 is an abundant number, since it is smaller than the sum of its proper divisors (4208092).

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

2227428 is a wasteful number, since it uses less digits than its factorization.

2227428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8856 (or 8851 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 2227428 is about 1492.4570345574. The cubic root of 2227428 is about 130.5974082272.

The spelling of 2227428 in words is "two million, two hundred twenty-seven thousand, four hundred twenty-eight".