8154420 has 96 divisors (see below), whose sum is σ = 25159680. Its totient is φ = 1964160.

The previous prime is 8154403. The next prime is 8154427. The reversal of 8154420 is 244518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8154427) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 26065 + ... + 26375.

It is an arithmetic number, because the mean of its divisors is an integer number (262080).

Almost surely, 2^8154420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8154420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12579840).

8154420 is an abundant number, since it is smaller than the sum of its proper divisors (17005260).

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

8154420 is a wasteful number, since it uses less digits than its factorization.

8154420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 8154420 is about 2855.5945090296. The cubic root of 8154420 is about 201.2786412949.

Adding to 8154420 its reverse (244518), we get a palindrome (8398938).

The spelling of 8154420 in words is "eight million, one hundred fifty-four thousand, four hundred twenty".