1234456685 has 32 divisors (see below), whose sum is σ = 1889851392. Its totient is φ = 751625280.

The previous prime is 1234456679. The next prime is 1234456687. The reversal of 1234456685 is 5866544321.

It is not a de Polignac number, because 1234456685 - 2¹⁶ = 1234391149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234456687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20729 + ... + 53838.

It is an arithmetic number, because the mean of its divisors is an integer number (59057856).

Almost surely, 2^1234456685 is an apocalyptic number.

It is an amenable number.

1234456685 is a deficient number, since it is larger than the sum of its proper divisors (655394707).

1234456685 is a wasteful number, since it uses less digits than its factorization.

1234456685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74633.

The product of its digits is 691200, while the sum is 44.

The square root of 1234456685 is about 35134.8357759076. The cubic root of 1234456685 is about 1072.7337684996.

The spelling of 1234456685 in words is "one billion, two hundred thirty-four million, four hundred fifty-six thousand, six hundred eighty-five".