2228402 has 16 divisors (see below), whose sum is σ = 3672000. Its totient is φ = 1005840.

The previous prime is 2228393. The next prime is 2228407. The reversal of 2228402 is 2048222.

Added to its reverse (2048222) it gives a square (4276624 = 2068²).

It is a d-powerful number, because it can be written as 2 + 2⁵ + 2⁷ + 8⁷ + 4² + 0 + 2¹⁷ .

It is not an unprimeable number, because it can be changed into a prime (2228407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4124 + ... + 4632.

It is an arithmetic number, because the mean of its divisors is an integer number (229500).

2^2228402 is an apocalyptic number.

2228402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2228402 is a deficient number, since it is larger than the sum of its proper divisors (1443598).

2228402 is a wasteful number, since it uses less digits than its factorization.

2228402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2228402 is about 1492.7833064447. The cubic root of 2228402 is about 130.6164411416.

Adding to 2228402 its reverse (2048222), we get a square (4276624 = 2068²).

The spelling of 2228402 in words is "two million, two hundred twenty-eight thousand, four hundred two".