305675136 has 96 divisors (see below), whose sum is σ = 947320920. Its totient is φ = 94049280.

The previous prime is 305675119. The next prime is 305675179. The reversal of 305675136 is 631576503.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a self number, because there is not a number n which added to its sum of digits gives 305675136.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4771 + ... + 25181.

Almost surely, 2^305675136 is an apocalyptic number.

305675136 is a gapful number since it is divisible by the number (36) 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 305675136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473660460).

305675136 is an abundant number, since it is smaller than the sum of its proper divisors (641645784).

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

305675136 is a wasteful number, since it uses less digits than its factorization.

305675136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20444 (or 20429 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 305675136 is about 17483.5675993202. The cubic root of 305675136 is about 673.6278562098.

The spelling of 305675136 in words is "three hundred five million, six hundred seventy-five thousand, one hundred thirty-six".