2028437 has 4 divisors (see below), whose sum is σ = 2052960. Its totient is φ = 2003916.

The previous prime is 2028431. The next prime is 2028443. The reversal of 2028437 is 7348202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7348202 = 2 ⋅3674101.

It is an interprime number because it is at equal distance from previous prime (2028431) and next prime (2028443).

It is a cyclic number.

It is not a de Polignac number, because 2028437 - 2⁶ = 2028373 is a prime.

It is a super-2 number, since 2×2028437² = 8229113325938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12137 + ... + 12302.

It is an arithmetic number, because the mean of its divisors is an integer number (513240).

2^2028437 is an apocalyptic number.

It is an amenable number.

2028437 is a deficient number, since it is larger than the sum of its proper divisors (24523).

2028437 is an equidigital number, since it uses as much as digits as its factorization.

2028437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24522.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 2028437 is about 1424.2320737857. The cubic root of 2028437 is about 126.5864365741.

The spelling of 2028437 in words is "two million, twenty-eight thousand, four hundred thirty-seven".