240342420 has 48 divisors (see below), whose sum is σ = 678279168. Its totient is φ = 63584640.

The previous prime is 240342397. The next prime is 240342461. The reversal of 240342420 is 24243042.

240342420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8151 + ... + 23390.

It is an arithmetic number, because the mean of its divisors is an integer number (14130816).

Almost surely, 2^240342420 is an apocalyptic number.

240342420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240342420 is an abundant number, since it is smaller than the sum of its proper divisors (437936748).

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

240342420 is a wasteful number, since it uses less digits than its factorization.

240342420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31680 (or 31678 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 240342420 is about 15502.9810036651. The cubic root of 240342420 is about 621.7419103421.

Adding to 240342420 its reverse (24243042), we get a palindrome (264585462).

The spelling of 240342420 in words is "two hundred forty million, three hundred forty-two thousand, four hundred twenty".