28552741 has 24 divisors (see below), whose sum is σ = 35557056. Its totient is φ = 22780800.

The previous prime is 28552739. The next prime is 28552751. The reversal of 28552741 is 14725582.

It is a happy number.

It is not a de Polignac number, because 28552741 - 2¹ = 28552739 is a prime.

It is a super-2 number, since 2×28552741² = 1630518037226162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28552697 and 28552706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28552751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125670 + ... + 125896.

It is an arithmetic number, because the mean of its divisors is an integer number (1481544).

Almost surely, 2^28552741 is an apocalyptic number.

It is an amenable number.

28552741 is a deficient number, since it is larger than the sum of its proper divisors (7004315).

28552741 is a wasteful number, since it uses less digits than its factorization.

28552741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 402 counting only the distinct ones).

The product of its digits is 22400, while the sum is 34.

The square root of 28552741 is about 5343.4764900765. The cubic root of 28552741 is about 305.6440426379.

The spelling of 28552741 in words is "twenty-eight million, five hundred fifty-two thousand, seven hundred forty-one".