226078881 has 16 divisors (see below), whose sum is σ = 346619904. Its totient is φ = 128393424.

The previous prime is 226078829. The next prime is 226078889. The reversal of 226078881 is 188870622.

226078881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-226078881 is a prime.

It is a super-2 number, since 2×226078881² = 102223320868424322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (226078889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29601 + ... + 36446.

It is an arithmetic number, because the mean of its divisors is an integer number (21663744).

Almost surely, 2^226078881 is an apocalyptic number.

226078881 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

226078881 is a deficient number, since it is larger than the sum of its proper divisors (120541023).

226078881 is a wasteful number, since it uses less digits than its factorization.

226078881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66220.

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 226078881 is about 15035.9196925230. The cubic root of 226078881 is about 609.1907938899.

The spelling of 226078881 in words is "two hundred twenty-six million, seventy-eight thousand, eight hundred eighty-one".