240230520 has 96 divisors (see below), whose sum is σ = 788598720. Its totient is φ = 63417600.

The previous prime is 240230513. The next prime is 240230531. The reversal of 240230520 is 25032042.

240230520 = T₃₃₁ + T₃₃₂ + ... + T₁₁₃₈.

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

It is a junction number, because it is equal to n+sod(n) for n = 240230493 and 240230502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33057 + ... + 39663.

It is an arithmetic number, because the mean of its divisors is an integer number (8214570).

Almost surely, 2^240230520 is an apocalyptic number.

240230520 is a gapful number since it is divisible by the number (20) 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 240230520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394299360).

240230520 is an abundant number, since it is smaller than the sum of its proper divisors (548368200).

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

240230520 is a wasteful number, since it uses less digits than its factorization.

240230520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6725 (or 6718 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 240230520 is about 15499.3716001650. The cubic root of 240230520 is about 621.6454039771.

Adding to 240230520 its reverse (25032042), we get a palindrome (265262562).

The spelling of 240230520 in words is "two hundred forty million, two hundred thirty thousand, five hundred twenty".