8426730 has 128 divisors (see below), whose sum is σ = 24385536. Its totient is φ = 1843200.

The previous prime is 8426701. The next prime is 8426731. The reversal of 8426730 is 376248.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8426731) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 205510 + ... + 205550.

It is an arithmetic number, because the mean of its divisors is an integer number (190512).

Almost surely, 2^8426730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8426730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12192768).

8426730 is an abundant number, since it is smaller than the sum of its proper divisors (15958806).

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

8426730 is a wasteful number, since it uses less digits than its factorization.

8426730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 8426730 is about 2902.8830496594. The cubic root of 8426730 is about 203.4946642811.

The spelling of 8426730 in words is "eight million, four hundred twenty-six thousand, seven hundred thirty".