28486142 has 8 divisors (see below), whose sum is σ = 42965832. Its totient is φ = 14164200.

The previous prime is 28486127. The next prime is 28486147. The reversal of 28486142 is 24168482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×28486142² = 1622920572088328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28486147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38984 + ... + 39707.

It is an arithmetic number, because the mean of its divisors is an integer number (5370729).

Almost surely, 2^28486142 is an apocalyptic number.

28486142 is a deficient number, since it is larger than the sum of its proper divisors (14479690).

28486142 is a wasteful number, since it uses less digits than its factorization.

28486142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78874.

The product of its digits is 24576, while the sum is 35.

The square root of 28486142 is about 5337.2410475825. The cubic root of 28486142 is about 305.4062203503.

The spelling of 28486142 in words is "twenty-eight million, four hundred eighty-six thousand, one hundred forty-two".