28141542 has 108 divisors (see below), whose sum is σ = 74595924. Its totient is φ = 7600320.

The previous prime is 28141537. The next prime is 28141559. The reversal of 28141542 is 24514182.

28141542 is a `hidden beast` number, since 2 + 81 + 41 + 542 = 666.

It is a super-2 number, since 2×28141542² = 1583892772275528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 970384 + ... + 970412.

It is an arithmetic number, because the mean of its divisors is an integer number (690703).

Almost surely, 2^28141542 is an apocalyptic number.

28141542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 28141542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37297962).

28141542 is an abundant number, since it is smaller than the sum of its proper divisors (46454382).

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

28141542 is a wasteful number, since it uses less digits than its factorization.

28141542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 58 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 28141542 is about 5304.8602243603. The cubic root of 28141542 is about 304.1697098922.

It can be divided in two parts, 2814 and 1542, that added together give a square (4356 = 66²).

The spelling of 28141542 in words is "twenty-eight million, one hundred forty-one thousand, five hundred forty-two".