28411420 has 24 divisors (see below), whose sum is σ = 63174384. Its totient is φ = 10695936.

The previous prime is 28411399. The next prime is 28411423. The reversal of 28411420 is 2411482.

It is a junction number, because it is equal to n+sod(n) for n = 28411391 and 28411400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28411423) 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, 41442 + ... + 42121.

It is an arithmetic number, because the mean of its divisors is an integer number (2632266).

Almost surely, 2^28411420 is an apocalyptic number.

28411420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28411420 is an abundant number, since it is smaller than the sum of its proper divisors (34762964).

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

28411420 is a wasteful number, since it uses less digits than its factorization.

28411420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83589 (or 83587 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 28411420 is about 5330.2363925064. The cubic root of 28411420 is about 305.1389494990.

It can be divided in two parts, 2841 and 1420, that multiplied together give a triangular number (4034220 = T₂₈₄₀).

The spelling of 28411420 in words is "twenty-eight million, four hundred eleven thousand, four hundred twenty".