240542020 has 24 divisors (see below), whose sum is σ = 521434368. Its totient is φ = 93112800.

The previous prime is 240542011. The next prime is 240542041. The reversal of 240542020 is 20245042.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193366 + ... + 194605.

It is an arithmetic number, because the mean of its divisors is an integer number (21726432).

Almost surely, 2^240542020 is an apocalyptic number.

240542020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240542020 is an abundant number, since it is smaller than the sum of its proper divisors (280892348).

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

240542020 is a wasteful number, since it uses less digits than its factorization.

240542020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388011 (or 388009 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 240542020 is about 15509.4171392738. The cubic root of 240542020 is about 621.9139778268.

Adding to 240542020 its reverse (20245042), we get a palindrome (260787062).

The spelling of 240542020 in words is "two hundred forty million, five hundred forty-two thousand, twenty".