8133420 has 48 divisors (see below), whose sum is σ = 22901760. Its totient is φ = 2156736.

The previous prime is 8133413. The next prime is 8133431. The reversal of 8133420 is 243318.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16741 + ... + 17219.

It is an arithmetic number, because the mean of its divisors is an integer number (477120).

Almost surely, 2^8133420 is an apocalyptic number.

It is an amenable number.

8133420 is an abundant number, since it is smaller than the sum of its proper divisors (14768340).

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

8133420 is a wasteful number, since it uses less digits than its factorization.

8133420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 8133420 is about 2851.9151460028. The cubic root of 8133420 is about 201.1057091049.

Adding to 8133420 its reverse (243318), we get a palindrome (8376738).

The spelling of 8133420 in words is "eight million, one hundred thirty-three thousand, four hundred twenty".