9146820 has 48 divisors (see below), whose sum is σ = 25800768. Its totient is φ = 2421120.

The previous prime is 9146789. The next prime is 9146869. The reversal of 9146820 is 286419.

It is a super-2 number, since 2×9146820² = 167328632224800, which contains 22 as substring.

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

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, 8935 + ... + 9905.

It is an arithmetic number, because the mean of its divisors is an integer number (537516).

Almost surely, 2^9146820 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 9146820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12900384).

9146820 is an abundant number, since it is smaller than the sum of its proper divisors (16653948).

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

9146820 is a wasteful number, since it uses less digits than its factorization.

9146820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140 (or 1138 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 9146820 is about 3024.3710089868. The cubic root of 9146820 is about 209.1333901198.

The spelling of 9146820 in words is "nine million, one hundred forty-six thousand, eight hundred twenty".