28540246 has 48 divisors (see below), whose sum is σ = 54271296. Its totient is φ = 11176704.

The previous prime is 28540231. The next prime is 28540249. The reversal of 28540246 is 64204582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28540249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61411 + ... + 61873.

It is an arithmetic number, because the mean of its divisors is an integer number (1130652).

Almost surely, 2^28540246 is an apocalyptic number.

28540246 is a deficient number, since it is larger than the sum of its proper divisors (25731050).

28540246 is a wasteful number, since it uses less digits than its factorization.

28540246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 28540246 is about 5342.3071794872. The cubic root of 28540246 is about 305.5994517113.

The spelling of 28540246 in words is "twenty-eight million, five hundred forty thousand, two hundred forty-six".