226409431 has 4 divisors (see below), whose sum is σ = 226441152. Its totient is φ = 226377712.

The previous prime is 226409423. The next prime is 226409437. The reversal of 226409431 is 134904622.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 226409431 - 2³ = 226409423 is a prime.

It is a super-2 number, since 2×226409431² = 102522460891487522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 226409393 and 226409402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226409437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411 + ... + 21283.

It is an arithmetic number, because the mean of its divisors is an integer number (56610288).

Almost surely, 2^226409431 is an apocalyptic number.

226409431 is the 9517-th centered pentagonal number.

226409431 is a deficient number, since it is larger than the sum of its proper divisors (31721).

226409431 is a wasteful number, since it uses less digits than its factorization.

226409431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31720.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 226409431 is about 15046.9076889572. The cubic root of 226409431 is about 609.4875486562.

The spelling of 226409431 in words is "two hundred twenty-six million, four hundred nine thousand, four hundred thirty-one".