305050140 has 36 divisors (see below), whose sum is σ = 925319304. Its totient is φ = 81346656.

The previous prime is 305050133. The next prime is 305050147. The reversal of 305050140 is 41050503.

It is an interprime number because it is at equal distance from previous prime (305050133) and next prime (305050147).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305050147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 847182 + ... + 847541.

It is an arithmetic number, because the mean of its divisors is an integer number (25703314).

Almost surely, 2^305050140 is an apocalyptic number.

305050140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

305050140 is an abundant number, since it is smaller than the sum of its proper divisors (620269164).

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

305050140 is a wasteful number, since it uses less digits than its factorization.

305050140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694738 (or 1694733 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 305050140 is about 17465.6846416051. The cubic root of 305050140 is about 673.1684338430.

The spelling of 305050140 in words is "three hundred five million, fifty thousand, one hundred forty".