136244444 has 24 divisors (see below), whose sum is σ = 273178080. Its totient is φ = 58242816.

The previous prime is 136244429. The next prime is 136244447. The reversal of 136244444 is 444442631.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 136244444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136244447) 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, 5504 + ... + 17400.

It is an arithmetic number, because the mean of its divisors is an integer number (11382420).

Almost surely, 2^136244444 is an apocalyptic number.

136244444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

136244444 is an abundant number, since it is smaller than the sum of its proper divisors (136933636).

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

136244444 is a wasteful number, since it uses less digits than its factorization.

136244444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12317 (or 12315 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

The square root of 136244444 is about 11672.3795346108. The cubic root of 136244444 is about 514.5642387986.

The spelling of 136244444 in words is "one hundred thirty-six million, two hundred forty-four thousand, four hundred forty-four".