28957542 has 16 divisors (see below), whose sum is σ = 58017792. Its totient is φ = 9635400.

The previous prime is 28957541. The next prime is 28957559. The reversal of 28957542 is 24575982.

It is a junction number, because it is equal to n+sod(n) for n = 28957494 and 28957503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28957541) 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, 334 + ... + 7617.

It is an arithmetic number, because the mean of its divisors is an integer number (3626112).

Almost surely, 2^28957542 is an apocalyptic number.

28957542 is an abundant number, since it is smaller than the sum of its proper divisors (29060250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28957542 is a wasteful number, since it uses less digits than its factorization.

28957542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8563.

The product of its digits is 201600, while the sum is 42.

The square root of 28957542 is about 5381.2212368569. The cubic root of 28957542 is about 307.0816732128.

The spelling of 28957542 in words is "twenty-eight million, nine hundred fifty-seven thousand, five hundred forty-two".