1226036433 has 4 divisors (see below), whose sum is σ = 1634715248. Its totient is φ = 817357620.

The previous prime is 1226036431. The next prime is 1226036479. The reversal of 1226036433 is 3346306221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3346306221 = 3 ⋅1115435407.

It is not a de Polignac number, because 1226036433 - 2¹ = 1226036431 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1226036433.

It is not an unprimeable number, because it can be changed into a prime (1226036431) 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, 204339403 + ... + 204339408.

It is an arithmetic number, because the mean of its divisors is an integer number (408678812).

Almost surely, 2^1226036433 is an apocalyptic number.

It is an amenable number.

1226036433 is a deficient number, since it is larger than the sum of its proper divisors (408678815).

1226036433 is an equidigital number, since it uses as much as digits as its factorization.

1226036433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408678814.

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 1226036433 is about 35014.8030552793. The cubic root of 1226036433 is about 1070.2891561370.

The spelling of 1226036433 in words is "one billion, two hundred twenty-six million, thirty-six thousand, four hundred thirty-three".