1226520634 has 16 divisors (see below), whose sum is σ = 1858300416. Its totient is φ = 607118400.

The previous prime is 1226520629. The next prime is 1226520637. The reversal of 1226520634 is 4360256221.

It is a junction number, because it is equal to n+sod(n) for n = 1226520596 and 1226520605.

It is not an unprimeable number, because it can be changed into a prime (1226520637) 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, 72994 + ... + 88210.

It is an arithmetic number, because the mean of its divisors is an integer number (116143776).

Almost surely, 2^1226520634 is an apocalyptic number.

1226520634 is a deficient number, since it is larger than the sum of its proper divisors (631779782).

1226520634 is a wasteful number, since it uses less digits than its factorization.

1226520634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15621.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1226520634 is about 35021.7166055578. The cubic root of 1226520634 is about 1070.4300347325.

Adding to 1226520634 its reverse (4360256221), we get a palindrome (5586776855).

The spelling of 1226520634 in words is "one billion, two hundred twenty-six million, five hundred twenty thousand, six hundred thirty-four".