28362140 has 12 divisors (see below), whose sum is σ = 59560536. Its totient is φ = 11344848.

The previous prime is 28362109. The next prime is 28362149. The reversal of 28362140 is 4126382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28362149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709034 + ... + 709073.

It is an arithmetic number, because the mean of its divisors is an integer number (4963378).

Almost surely, 2^28362140 is an apocalyptic number.

28362140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28362140 is an abundant number, since it is smaller than the sum of its proper divisors (31198396).

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

28362140 is a wasteful number, since it uses less digits than its factorization.

28362140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418116 (or 1418114 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 28362140 is about 5325.6117019550. The cubic root of 28362140 is about 304.9624248255.

The spelling of 28362140 in words is "twenty-eight million, three hundred sixty-two thousand, one hundred forty".