1226623534 has 16 divisors (see below), whose sum is σ = 1921422240. Its totient is φ = 586190880.

The previous prime is 1226623529. The next prime is 1226623537. The reversal of 1226623534 is 4353266221.

It is a self number, because there is not a number n which added to its sum of digits gives 1226623534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226623537) 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, 53872 + ... + 73180.

It is an arithmetic number, because the mean of its divisors is an integer number (120088890).

Almost surely, 2^1226623534 is an apocalyptic number.

1226623534 is a deficient number, since it is larger than the sum of its proper divisors (694798706).

1226623534 is a wasteful number, since it uses less digits than its factorization.

1226623534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20715.

The product of its digits is 51840, while the sum is 34.

The square root of 1226623534 is about 35023.1856632146. The cubic root of 1226623534 is about 1070.4599687772.

Adding to 1226623534 its reverse (4353266221), we get a palindrome (5579889755).

The spelling of 1226623534 in words is "one billion, two hundred twenty-six million, six hundred twenty-three thousand, five hundred thirty-four".