305182740 has 24 divisors (see below), whose sum is σ = 854511840. Its totient is φ = 81382048.

The previous prime is 305182729. The next prime is 305182741. The reversal of 305182740 is 47281503.

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 = 305182698 and 305182707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305182741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2543130 + ... + 2543249.

It is an arithmetic number, because the mean of its divisors is an integer number (35604660).

Almost surely, 2^305182740 is an apocalyptic number.

305182740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

305182740 is an abundant number, since it is smaller than the sum of its proper divisors (549329100).

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

305182740 is a wasteful number, since it uses less digits than its factorization.

305182740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5086391 (or 5086389 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 305182740 is about 17469.4802441286. The cubic root of 305182740 is about 673.2659579242.

The spelling of 305182740 in words is "three hundred five million, one hundred eighty-two thousand, seven hundred forty".