28402060 has 24 divisors (see below), whose sum is σ = 59746176. Its totient is φ = 11341440.

The previous prime is 28402039. The next prime is 28402061. The reversal of 28402060 is 6020482.

It is not an unprimeable number, because it can be changed into a prime (28402061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19104 + ... + 20536.

It is an arithmetic number, because the mean of its divisors is an integer number (2489424).

Almost surely, 2^28402060 is an apocalyptic number.

28402060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28402060 is an abundant number, since it is smaller than the sum of its proper divisors (31344116).

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

28402060 is a wasteful number, since it uses less digits than its factorization.

28402060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2433 (or 2431 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 28402060 is about 5329.3583103409. The cubic root of 28402060 is about 305.1054369858.

It can be divided in two parts, 2840 and 2060, that added together give a square (4900 = 70²).

The spelling of 28402060 in words is "twenty-eight million, four hundred two thousand, sixty".