136406344 has 16 divisors (see below), whose sum is σ = 262000620. Its totient is φ = 66539520.

The previous prime is 136406329. The next prime is 136406357. The reversal of 136406344 is 443604631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 120165444 + 16240900 = 10962^2 + 4030^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207609 + ... + 208264.

Almost surely, 2^136406344 is an apocalyptic number.

It is an amenable number.

136406344 is a deficient number, since it is larger than the sum of its proper divisors (125594276).

136406344 is a wasteful number, since it uses less digits than its factorization.

136406344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415920 (or 415916 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 136406344 is about 11679.3126510082. The cubic root of 136406344 is about 514.7679779289.

The spelling of 136406344 in words is "one hundred thirty-six million, four hundred six thousand, three hundred forty-four".