43226261 has 4 divisors (see below), whose sum is σ = 46551372. Its totient is φ = 39901152.

The previous prime is 43226243. The next prime is 43226263. The reversal of 43226261 is 16262234.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3976036 + 39250225 = 1994^2 + 6265^2 .

It is a cyclic number.

It is not a de Polignac number, because 43226261 - 2²² = 39031957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43226261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43226263) 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, 1662536 + ... + 1662561.

It is an arithmetic number, because the mean of its divisors is an integer number (11637843).

Almost surely, 2^43226261 is an apocalyptic number.

It is an amenable number.

43226261 is a deficient number, since it is larger than the sum of its proper divisors (3325111).

43226261 is a wasteful number, since it uses less digits than its factorization.

43226261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3325110.

The product of its digits is 3456, while the sum is 26.

The square root of 43226261 is about 6574.6681285066. The cubic root of 43226261 is about 350.9532138406.

Adding to 43226261 its reverse (16262234), we get a palindrome (59488495).

The spelling of 43226261 in words is "forty-three million, two hundred twenty-six thousand, two hundred sixty-one".