406426026 has 16 divisors (see below), whose sum is σ = 813095424. Its totient is φ = 135434784.

The previous prime is 406426001. The next prime is 406426037. The reversal of 406426026 is 620624604.

It is a super-2 number, since 2×406426026² = 330364229220305352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 406425984 and 406426002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17271 + ... + 33333.

It is an arithmetic number, because the mean of its divisors is an integer number (50818464).

Almost surely, 2^406426026 is an apocalyptic number.

406426026 is an abundant number, since it is smaller than the sum of its proper divisors (406669398).

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

406426026 is a wasteful number, since it uses less digits than its factorization.

406426026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20285.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 406426026 is about 20160.0105654734. The cubic root of 406426026 is about 740.7309711600.

The spelling of 406426026 in words is "four hundred six million, four hundred twenty-six thousand, twenty-six".