136473240 has 64 divisors (see below), whose sum is σ = 410652000. Its totient is φ = 36283392.

The previous prime is 136473221. The next prime is 136473307. The reversal of 136473240 is 42374631.

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 = 136473198 and 136473207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43236 + ... + 46284.

Almost surely, 2^136473240 is an apocalyptic number.

136473240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136473240 is an abundant number, since it is smaller than the sum of its proper divisors (274178760).

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

136473240 is a wasteful number, since it uses less digits than its factorization.

136473240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436 (or 3432 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 136473240 is about 11682.1761671360. The cubic root of 136473240 is about 514.8521145115.

The spelling of 136473240 in words is "one hundred thirty-six million, four hundred seventy-three thousand, two hundred forty".