226021394 has 4 divisors (see below), whose sum is σ = 339032094. Its totient is φ = 113010696.

The previous prime is 226021387. The next prime is 226021421. The reversal of 226021394 is 493120622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 493120622 = 2 ⋅246560311.

It can be written as a sum of positive squares in only one way, i.e., 190081369 + 35940025 = 13787^2 + 5995^2 .

It is a super-3 number, since 3×226021394³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56505347 + ... + 56505350.

Almost surely, 2^226021394 is an apocalyptic number.

226021394 is a deficient number, since it is larger than the sum of its proper divisors (113010700).

226021394 is a wasteful number, since it uses less digits than its factorization.

226021394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113010699.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 226021394 is about 15034.0079153897. The cubic root of 226021394 is about 609.1391548045.

The spelling of 226021394 in words is "two hundred twenty-six million, twenty-one thousand, three hundred ninety-four".