2238436 has 12 divisors (see below), whose sum is σ = 4013100. Its totient is φ = 1091840.

The previous prime is 2238421. The next prime is 2238473. The reversal of 2238436 is 6348322.

It can be written as a sum of positive squares in 2 ways, for example, as 164836 + 2073600 = 406^2 + 1440^2 .

It is a d-powerful number, because it can be written as 2¹⁵ + 2¹⁹ + 3 + 8 + 4⁵ + 3⁶ + 6⁸ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6661 + ... + 6988.

It is an arithmetic number, because the mean of its divisors is an integer number (334425).

2^2238436 is an apocalyptic number.

It is an amenable number.

2238436 is a deficient number, since it is larger than the sum of its proper divisors (1774664).

2238436 is a wasteful number, since it uses less digits than its factorization.

2238436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13694 (or 13692 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 2238436 is about 1496.1403677463. The cubic root of 2238436 is about 130.8121932477.

The spelling of 2238436 in words is "two million, two hundred thirty-eight thousand, four hundred thirty-six".