431345226 has 64 divisors (see below), whose sum is σ = 959390208. Its totient is φ = 128452608.

The previous prime is 431345221. The next prime is 431345237. The reversal of 431345226 is 622543134.

It is a junction number, because it is equal to n+sod(n) for n = 431345193 and 431345202.

It is not an unprimeable number, because it can be changed into a prime (431345221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 354996 + ... + 356208.

It is an arithmetic number, because the mean of its divisors is an integer number (14990472).

Almost surely, 2^431345226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431345226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479695104).

431345226 is an abundant number, since it is smaller than the sum of its proper divisors (528044982).

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

431345226 is a wasteful number, since it uses less digits than its factorization.

431345226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375.

The product of its digits is 17280, while the sum is 30.

The square root of 431345226 is about 20768.8523033893. The cubic root of 431345226 is about 755.5705092468.

The spelling of 431345226 in words is "four hundred thirty-one million, three hundred forty-five thousand, two hundred twenty-six".