2237428 has 6 divisors (see below), whose sum is σ = 3915506. Its totient is φ = 1118712.

The previous prime is 2237413. The next prime is 2237429. The reversal of 2237428 is 8247322.

It can be written as a sum of positive squares in only one way, i.e., 1954404 + 283024 = 1398^2 + 532^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁹ + 2¹⁷ + 3⁷ + 7⁴ + 4⁶ + 2²¹ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 2237396 and 2237405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2237429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 279675 + ... + 279682.

2^2237428 is an apocalyptic number.

It is an amenable number.

2237428 is a deficient number, since it is larger than the sum of its proper divisors (1678078).

2237428 is a wasteful number, since it uses less digits than its factorization.

2237428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559361 (or 559359 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 2237428 is about 1495.8034630258. The cubic root of 2237428 is about 130.7925547608.

The spelling of 2237428 in words is "two million, two hundred thirty-seven thousand, four hundred twenty-eight".