136264440 has 128 divisors (see below), whose sum is σ = 444709440. Its totient is φ = 33202176.

The previous prime is 136264411. The next prime is 136264459. The reversal of 136264440 is 44462631.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 136264398 and 136264407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175894 + ... + 176666.

Almost surely, 2^136264440 is an apocalyptic number.

136264440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136264440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222354720).

136264440 is an abundant number, since it is smaller than the sum of its proper divisors (308445000).

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

136264440 is a wasteful number, since it uses less digits than its factorization.

136264440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913 (or 909 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 136264440 is about 11673.2360551820. The cubic root of 136264440 is about 514.5894110133.

The spelling of 136264440 in words is "one hundred thirty-six million, two hundred sixty-four thousand, four hundred forty".