1240102420 has 24 divisors (see below), whose sum is σ = 2605680000. Its totient is φ = 495761952.

The previous prime is 1240102403. The next prime is 1240102433. The reversal of 1240102420 is 242010421.

1240102420 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1240102394 and 1240102403.

It is a congruent number.

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, 21081 + ... + 54079.

It is an arithmetic number, because the mean of its divisors is an integer number (108570000).

Almost surely, 2^1240102420 is an apocalyptic number.

1240102420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240102420 is an abundant number, since it is smaller than the sum of its proper divisors (1365577580).

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

1240102420 is a wasteful number, since it uses less digits than its factorization.

1240102420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34887 (or 34885 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1240102420 is about 35215.0879595664. The cubic root of 1240102420 is about 1074.3666491001.

Adding to 1240102420 its reverse (242010421), we get a palindrome (1482112841).

The spelling of 1240102420 in words is "one billion, two hundred forty million, one hundred two thousand, four hundred twenty".