1223776494 has 12 divisors (see below), whose sum is σ = 2651515776. Its totient is φ = 407925492.

The previous prime is 1223776493. The next prime is 1223776531. The reversal of 1223776494 is 4946773221.

1223776494 is a `hidden beast` number, since 122 + 37 + 7 + 6 + 494 = 666.

1223776494 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223776493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33993774 + ... + 33993809.

It is an arithmetic number, because the mean of its divisors is an integer number (220959648).

Almost surely, 2^1223776494 is an apocalyptic number.

1223776494 is an abundant number, since it is smaller than the sum of its proper divisors (1427739282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223776494 is a wasteful number, since it uses less digits than its factorization.

1223776494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67987591 (or 67987588 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 1223776494 is about 34982.5169763412. The cubic root of 1223776494 is about 1069.6311343907.

The spelling of 1223776494 in words is "one billion, two hundred twenty-three million, seven hundred seventy-six thousand, four hundred ninety-four".