136449400 has 24 divisors (see below), whose sum is σ = 317245320. Its totient is φ = 54579680.

The previous prime is 136449389. The next prime is 136449403. The reversal of 136449400 is 4944631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136449403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 340924 + ... + 341323.

It is an arithmetic number, because the mean of its divisors is an integer number (13218555).

Almost surely, 2^136449400 is an apocalyptic number.

136449400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136449400 is an abundant number, since it is smaller than the sum of its proper divisors (180795920).

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

136449400 is a wasteful number, since it uses less digits than its factorization.

136449400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682263 (or 682254 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 136449400 is about 11681.1557647349. The cubic root of 136449400 is about 514.8221335687.

The spelling of 136449400 in words is "one hundred thirty-six million, four hundred forty-nine thousand, four hundred".