28434486 has 16 divisors (see below), whose sum is σ = 59341824. Its totient is φ = 9066024.

The previous prime is 28434457. The next prime is 28434491. The reversal of 28434486 is 68443482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102886 + ... + 103161.

It is an arithmetic number, because the mean of its divisors is an integer number (3708864).

Almost surely, 2^28434486 is an apocalyptic number.

28434486 is an abundant number, since it is smaller than the sum of its proper divisors (30907338).

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

28434486 is a wasteful number, since it uses less digits than its factorization.

28434486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206075.

The product of its digits is 147456, while the sum is 39.

The square root of 28434486 is about 5332.3996474383. The cubic root of 28434486 is about 305.2215035232.

It can be divided in two parts, 28434 and 486, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 28434486 in words is "twenty-eight million, four hundred thirty-four thousand, four hundred eighty-six".