28406300 has 36 divisors (see below), whose sum is σ = 66386376. Its totient is φ = 10488000.

The previous prime is 28406291. The next prime is 28406309. The reversal of 28406300 is 360482.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28406291) and next prime (28406309).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28406309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9626 + ... + 12225.

It is an arithmetic number, because the mean of its divisors is an integer number (1844066).

Almost surely, 2^28406300 is an apocalyptic number.

28406300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28406300 is an abundant number, since it is smaller than the sum of its proper divisors (37980076).

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

28406300 is a wasteful number, since it uses less digits than its factorization.

28406300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21878 (or 21871 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 28406300 is about 5329.7560919802. The cubic root of 28406300 is about 305.1206187799.

Adding to 28406300 its reverse (360482), we get a palindrome (28766782).

The spelling of 28406300 in words is "twenty-eight million, four hundred six thousand, three hundred".