28373420 has 24 divisors (see below), whose sum is σ = 59892000. Its totient is φ = 11290752.

The previous prime is 28373419. The next prime is 28373431. The reversal of 28373420 is 2437382.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416 + ... + 7544.

It is an arithmetic number, because the mean of its divisors is an integer number (2495500).

Almost surely, 2^28373420 is an apocalyptic number.

28373420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28373420 is an abundant number, since it is smaller than the sum of its proper divisors (31518580).

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

28373420 is a wasteful number, since it uses less digits than its factorization.

28373420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7337 (or 7335 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 28373420 is about 5326.6706299526. The cubic root of 28373420 is about 305.0028486700.

The spelling of 28373420 in words is "twenty-eight million, three hundred seventy-three thousand, four hundred twenty".