28486370 has 16 divisors (see below), whose sum is σ = 55937088. Its totient is φ = 10358640.

The previous prime is 28486363. The next prime is 28486379. The reversal of 28486370 is 7368482.

It is a super-2 number, since 2×28486370² = 1622946551553800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28486379) 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 7 ways as a sum of consecutive naturals, for example, 129374 + ... + 129593.

It is an arithmetic number, because the mean of its divisors is an integer number (3496068).

Almost surely, 2^28486370 is an apocalyptic number.

28486370 is a deficient number, since it is larger than the sum of its proper divisors (27450718).

28486370 is a wasteful number, since it uses less digits than its factorization.

28486370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258985.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 28486370 is about 5337.2624068899. The cubic root of 28486370 is about 305.4070351609.

The spelling of 28486370 in words is "twenty-eight million, four hundred eighty-six thousand, three hundred seventy".