240545020 has 24 divisors (see below), whose sum is σ = 507019968. Its totient is φ = 95860800.

The previous prime is 240545003. The next prime is 240545023. The reversal of 240545020 is 20545042.

It is a junction number, because it is equal to n+sod(n) for n = 240544982 and 240545000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240545023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16771 + ... + 27610.

It is an arithmetic number, because the mean of its divisors is an integer number (21125832).

Almost surely, 2^240545020 is an apocalyptic number.

240545020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240545020 is an abundant number, since it is smaller than the sum of its proper divisors (266474948).

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

240545020 is a wasteful number, since it uses less digits than its factorization.

240545020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44661 (or 44659 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 240545020 is about 15509.5138544056. The cubic root of 240545020 is about 621.9165632852.

Adding to 240545020 its sum of digits (22), we get a palindrome (240545042).

The spelling of 240545020 in words is "two hundred forty million, five hundred forty-five thousand, twenty".