240102420 has 48 divisors (see below), whose sum is σ = 679855680. Its totient is φ = 63306496.

The previous prime is 240102419. The next prime is 240102427. The reversal of 240102420 is 24201042.

240102420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 240102420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240102427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17142 + ... + 27821.

It is an arithmetic number, because the mean of its divisors is an integer number (14163660).

Almost surely, 2^240102420 is an apocalyptic number.

240102420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240102420 is an abundant number, since it is smaller than the sum of its proper divisors (439753260).

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

240102420 is a wasteful number, since it uses less digits than its factorization.

240102420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45064 (or 45062 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 240102420 is about 15495.2386235256. The cubic root of 240102420 is about 621.5348893835.

Adding to 240102420 its reverse (24201042), we get a palindrome (264303462).

The spelling of 240102420 in words is "two hundred forty million, one hundred two thousand, four hundred twenty".