240020844 has 96 divisors (see below), whose sum is σ = 680870400. Its totient is φ = 64281600.

The previous prime is 240020843. The next prime is 240020857. The reversal of 240020844 is 448020042.

It is a super-2 number, since 2×240020844² = 115220011108944672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (240020843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160452 + ... + 161940.

It is an arithmetic number, because the mean of its divisors is an integer number (7092400).

Almost surely, 2^240020844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240020844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340435200).

240020844 is an abundant number, since it is smaller than the sum of its proper divisors (440849556).

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

240020844 is a wasteful number, since it uses less digits than its factorization.

240020844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623 (or 1621 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 240020844 is about 15492.6061074307. The cubic root of 240020844 is about 621.4644915462.

Adding to 240020844 its reverse (448020042), we get a palindrome (688040886).

The spelling of 240020844 in words is "two hundred forty million, twenty thousand, eight hundred forty-four".