28461542 has 4 divisors (see below), whose sum is σ = 42692316. Its totient is φ = 14230770.

The previous prime is 28461539. The next prime is 28461569. The reversal of 28461542 is 24516482.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 28461499 and 28461508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7115384 + ... + 7115387.

It is an arithmetic number, because the mean of its divisors is an integer number (10673079).

Almost surely, 2^28461542 is an apocalyptic number.

28461542 is a deficient number, since it is larger than the sum of its proper divisors (14230774).

28461542 is a wasteful number, since it uses less digits than its factorization.

28461542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14230773.

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

The square root of 28461542 is about 5334.9359883695. The cubic root of 28461542 is about 305.3182810201.

The spelling of 28461542 in words is "twenty-eight million, four hundred sixty-one thousand, five hundred forty-two".