28626241 has 12 divisors (see below), whose sum is σ = 34114500. Its totient is φ = 23936640.

The previous prime is 28626239. The next prime is 28626253. The reversal of 28626241 is 14262682.

It can be written as a sum of positive squares in 2 ways, for example, as 9790641 + 18835600 = 3129^2 + 4340^2 .

It is not a de Polignac number, because 28626241 - 2¹ = 28626239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28626341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5116 + ... + 9133.

It is an arithmetic number, because the mean of its divisors is an integer number (2842875).

Almost surely, 2^28626241 is an apocalyptic number.

It is an amenable number.

28626241 is a deficient number, since it is larger than the sum of its proper divisors (5488259).

28626241 is a wasteful number, since it uses less digits than its factorization.

28626241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14304 (or 14297 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 28626241 is about 5350.3496147448. The cubic root of 28626241 is about 305.9060792254.

The spelling of 28626241 in words is "twenty-eight million, six hundred twenty-six thousand, two hundred forty-one".