28406652 has 12 divisors (see below), whose sum is σ = 66282216. Its totient is φ = 9468880.

The previous prime is 28406647. The next prime is 28406699. The reversal of 28406652 is 25660482.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1183599 + ... + 1183622.

It is an arithmetic number, because the mean of its divisors is an integer number (5523518).

Almost surely, 2^28406652 is an apocalyptic number.

It is an amenable number.

28406652 is an abundant number, since it is smaller than the sum of its proper divisors (37875564).

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

28406652 is a wasteful number, since it uses less digits than its factorization.

28406652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367228 (or 2367226 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 28406652 is about 5329.7891140269. The cubic root of 28406652 is about 305.1218790874.

The spelling of 28406652 in words is "twenty-eight million, four hundred six thousand, six hundred fifty-two".