240730520 has 16 divisors (see below), whose sum is σ = 541643760. Its totient is φ = 96292192.

The previous prime is 240730519. The next prime is 240730601. The reversal of 240730520 is 25037042.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3009092 + ... + 3009171.

It is an arithmetic number, because the mean of its divisors is an integer number (33852735).

Almost surely, 2^240730520 is an apocalyptic number.

240730520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240730520 is an abundant number, since it is smaller than the sum of its proper divisors (300913240).

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

240730520 is a wasteful number, since it uses less digits than its factorization.

240730520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6018274 (or 6018270 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 240730520 is about 15515.4929022574. The cubic root of 240730520 is about 622.0763890562.

Adding to 240730520 its reverse (25037042), we get a palindrome (265767562).

The spelling of 240730520 in words is "two hundred forty million, seven hundred thirty thousand, five hundred twenty".