1226339939 has 8 divisors (see below), whose sum is σ = 1350815232. Its totient is φ = 1104029640.

The previous prime is 1226339929. The next prime is 1226339941. The reversal of 1226339939 is 9399336221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1226339939 - 2¹² = 1226335843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1226339893 and 1226339902.

It is not an unprimeable number, because it can be changed into a prime (1226339909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540059 + ... + 542324.

It is an arithmetic number, because the mean of its divisors is an integer number (168851904).

Almost surely, 2^1226339939 is an apocalyptic number.

1226339939 is a deficient number, since it is larger than the sum of its proper divisors (124475293).

1226339939 is a wasteful number, since it uses less digits than its factorization.

1226339939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082497.

The product of its digits is 472392, while the sum is 47.

The square root of 1226339939 is about 35019.1367540663. The cubic root of 1226339939 is about 1070.3774657420.

The spelling of 1226339939 in words is "one billion, two hundred twenty-six million, three hundred thirty-nine thousand, nine hundred thirty-nine".