7421826 has 16 divisors (see below), whose sum is σ = 15717024. Its totient is φ = 2328384.

The previous prime is 7421807. The next prime is 7421831. The reversal of 7421826 is 6281247.

It is a junction number, because it is equal to n+sod(n) for n = 7421793 and 7421802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36280 + ... + 36483.

It is an arithmetic number, because the mean of its divisors is an integer number (982314).

Almost surely, 2^7421826 is an apocalyptic number.

7421826 is an abundant number, since it is smaller than the sum of its proper divisors (8295198).

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

7421826 is a wasteful number, since it uses less digits than its factorization.

7421826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72785.

The product of its digits is 5376, while the sum is 30.

The square root of 7421826 is about 2724.3028466013. The cubic root of 7421826 is about 195.0609145657.

The spelling of 7421826 in words is "seven million, four hundred twenty-one thousand, eight hundred twenty-six".