28429260 has 48 divisors (see below), whose sum is σ = 79833600. Its totient is φ = 7559104.

The previous prime is 28429249. The next prime is 28429273. The reversal of 28429260 is 6292482.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39181 + ... + 39899.

It is an arithmetic number, because the mean of its divisors is an integer number (1663200).

Almost surely, 2^28429260 is an apocalyptic number.

28429260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28429260 is an abundant number, since it is smaller than the sum of its proper divisors (51404340).

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

28429260 is a wasteful number, since it uses less digits than its factorization.

28429260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 1388 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 28429260 is about 5331.9096016343. The cubic root of 28429260 is about 305.2028033985.

The spelling of 28429260 in words is "twenty-eight million, four hundred twenty-nine thousand, two hundred sixty".