2538428 has 24 divisors (see below), whose sum is σ = 4670400. Its totient is φ = 1205568.

The previous prime is 2538427. The next prime is 2538443. The reversal of 2538428 is 8248352.

It is a super-2 number, since 2×2538428² = 12887233422368, which contains 22 as substring.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 2538394 and 2538403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2538421) 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, 9026 + ... + 9302.

It is an arithmetic number, because the mean of its divisors is an integer number (194600).

2^2538428 is an apocalyptic number.

It is an amenable number.

2538428 is a deficient number, since it is larger than the sum of its proper divisors (2131972).

2538428 is a wasteful number, since it uses less digits than its factorization.

2538428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 387 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 2538428 is about 1593.2444884574. The cubic root of 2538428 is about 136.4127455174.

The spelling of 2538428 in words is "two million, five hundred thirty-eight thousand, four hundred twenty-eight".