7426920 has 64 divisors (see below), whose sum is σ = 22680000. Its totient is φ = 1945088.

The previous prime is 7426901. The next prime is 7426931. The reversal of 7426920 is 296247.

It is a happy number.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6556 + ... + 7604.

It is an arithmetic number, because the mean of its divisors is an integer number (354375).

Almost surely, 2^7426920 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 7426920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11340000).

7426920 is an abundant number, since it is smaller than the sum of its proper divisors (15253080).

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

7426920 is a wasteful number, since it uses less digits than its factorization.

7426920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 7426920 is about 2725.2376043200. The cubic root of 7426920 is about 195.1055313063.

The spelling of 7426920 in words is "seven million, four hundred twenty-six thousand, nine hundred twenty".