28754542 has 4 divisors (see below), whose sum is σ = 43131816. Its totient is φ = 14377270.

The previous prime is 28754471. The next prime is 28754549. The reversal of 28754542 is 24545782.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28754549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7188634 + ... + 7188637.

It is an arithmetic number, because the mean of its divisors is an integer number (10782954).

Almost surely, 2^28754542 is an apocalyptic number.

28754542 is a deficient number, since it is larger than the sum of its proper divisors (14377274).

28754542 is a wasteful number, since it uses less digits than its factorization.

28754542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14377273.

The product of its digits is 89600, while the sum is 37.

The square root of 28754542 is about 5362.3261743389. The cubic root of 28754542 is about 306.3624153736.

The spelling of 28754542 in words is "twenty-eight million, seven hundred fifty-four thousand, five hundred forty-two".