8538420 has 96 divisors (see below), whose sum is σ = 27651456. Its totient is φ = 1945600.

The previous prime is 8538419. The next prime is 8538433. The reversal of 8538420 is 248358.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10840 + ... + 11600.

It is an arithmetic number, because the mean of its divisors is an integer number (288036).

Almost surely, 2^8538420 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 8538420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13825728).

8538420 is an abundant number, since it is smaller than the sum of its proper divisors (19113036).

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

8538420 is a wasteful number, since it uses less digits than its factorization.

8538420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 8538420 is about 2922.0574943009. The cubic root of 8538420 is about 204.3897776631.

The spelling of 8538420 in words is "eight million, five hundred thirty-eight thousand, four hundred twenty".