136430784 has 112 divisors (see below), whose sum is σ = 458419200. Its totient is φ = 38976768.

The previous prime is 136430717. The next prime is 136430843. The reversal of 136430784 is 487034631.

136430784 is a `hidden beast` number, since 1 + 3 + 643 + 0 + 7 + 8 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×136430784² = 37226717645709312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 6457 + ... + 17735.

Almost surely, 2^136430784 is an apocalyptic number.

136430784 is a gapful number since it is divisible by the number (14) 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 136430784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229209600).

136430784 is an abundant number, since it is smaller than the sum of its proper divisors (321988416).

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

136430784 is a wasteful number, since it uses less digits than its factorization.

136430784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11307 (or 11291 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 136430784 is about 11680.3588985955. The cubic root of 136430784 is about 514.7987198473.

The spelling of 136430784 in words is "one hundred thirty-six million, four hundred thirty thousand, seven hundred eighty-four".