1226996518 has 32 divisors (see below), whose sum is σ = 2029370112. Its totient is φ = 551772000.

The previous prime is 1226996513. The next prime is 1226996521. The reversal of 1226996518 is 8156996221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226996513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 942468 + ... + 943768.

It is an arithmetic number, because the mean of its divisors is an integer number (63417816).

Almost surely, 2^1226996518 is an apocalyptic number.

1226996518 is a deficient number, since it is larger than the sum of its proper divisors (802373594).

1226996518 is a wasteful number, since it uses less digits than its factorization.

1226996518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740.

The product of its digits is 466560, while the sum is 49.

The square root of 1226996518 is about 35028.5100739383. The cubic root of 1226996518 is about 1070.5684573688.

The spelling of 1226996518 in words is "one billion, two hundred twenty-six million, nine hundred ninety-six thousand, five hundred eighteen".