28076142 has 32 divisors (see below), whose sum is σ = 58281984. Its totient is φ = 9007200.

The previous prime is 28076137. The next prime is 28076143. The reversal of 28076142 is 24167082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28076143) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 50128 + ... + 50684.

It is an arithmetic number, because the mean of its divisors is an integer number (1821312).

Almost surely, 2^28076142 is an apocalyptic number.

28076142 is an abundant number, since it is smaller than the sum of its proper divisors (30205842).

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

28076142 is a wasteful number, since it uses less digits than its factorization.

28076142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 28076142 is about 5298.6924802257. The cubic root of 28076142 is about 303.9339003910.

The spelling of 28076142 in words is "twenty-eight million, seventy-six thousand, one hundred forty-two".