2276428 has 48 divisors (see below), whose sum is σ = 5241600. Its totient is φ = 838080.

The previous prime is 2276411. The next prime is 2276429. The reversal of 2276428 is 8246722.

It is a self number, because there is not a number n which added to its sum of digits gives 2276428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2276429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5658 + ... + 6046.

It is an arithmetic number, because the mean of its divisors is an integer number (109200).

2^2276428 is an apocalyptic number.

2276428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2276428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2620800).

2276428 is an abundant number, since it is smaller than the sum of its proper divisors (2965172).

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

2276428 is a wasteful number, since it uses less digits than its factorization.

2276428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 428 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 2276428 is about 1508.7836160298. The cubic root of 2276428 is about 131.5481181161.

It can be divided in two parts, 2276 and 428, that added together give a square (2704 = 52²).

The spelling of 2276428 in words is "two million, two hundred seventy-six thousand, four hundred twenty-eight".