826438145 has 16 divisors (see below), whose sum is σ = 1102467072. Its totient is φ = 590604480.

The previous prime is 826438121. The next prime is 826438273. The reversal of 826438145 is 541834628.

It is not a de Polignac number, because 826438145 - 2¹⁰ = 826437121 is a prime.

It is a super-2 number, since 2×826438145² = 1366000015022082050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203057 + ... + 207086.

It is an arithmetic number, because the mean of its divisors is an integer number (68904192).

Almost surely, 2^826438145 is an apocalyptic number.

It is an amenable number.

826438145 is a deficient number, since it is larger than the sum of its proper divisors (276028927).

826438145 is a wasteful number, since it uses less digits than its factorization.

826438145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410192.

The product of its digits is 184320, while the sum is 41.

The square root of 826438145 is about 28747.8372229982. The cubic root of 826438145 is about 938.4333890917.

The spelling of 826438145 in words is "eight hundred twenty-six million, four hundred thirty-eight thousand, one hundred forty-five".