136700440 has 128 divisors (see below), whose sum is σ = 342144000. Its totient is φ = 48964608.

The previous prime is 136700407. The next prime is 136700453. The reversal of 136700440 is 44007631.

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, 1535916 + ... + 1536004.

It is an arithmetic number, because the mean of its divisors is an integer number (2673000).

Almost surely, 2^136700440 is an apocalyptic number.

136700440 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 136700440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171072000).

136700440 is an abundant number, since it is smaller than the sum of its proper divisors (205443560).

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

136700440 is a wasteful number, since it uses less digits than its factorization.

136700440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 136700440 is about 11691.8963389178. The cubic root of 136700440 is about 515.1376638924.

The spelling of 136700440 in words is "one hundred thirty-six million, seven hundred thousand, four hundred forty".