8123490 has 48 divisors (see below), whose sum is σ = 21909888. Its totient is φ = 2165616.

The previous prime is 8123483. The next prime is 8123543. The reversal of 8123490 is 943218.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 759 + ... + 4101.

It is an arithmetic number, because the mean of its divisors is an integer number (456456).

Almost surely, 2^8123490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8123490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10954944).

8123490 is an abundant number, since it is smaller than the sum of its proper divisors (13786398).

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

8123490 is a wasteful number, since it uses less digits than its factorization.

8123490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365 (or 3353 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 8123490 is about 2850.1736789185. The cubic root of 8123490 is about 201.0238332176.

Adding to 8123490 its product of nonzero digits (1728), we get a palindrome (8125218).

The spelling of 8123490 in words is "eight million, one hundred twenty-three thousand, four hundred ninety".