130242420 has 144 divisors (see below), whose sum is σ = 492605568. Its totient is φ = 27060480.

The previous prime is 130242407. The next prime is 130242449. The reversal of 130242420 is 24242031.

130242420 is a `hidden beast` number, since 1 + 3 + 0 + 242 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 130242393 and 130242402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9162 + ... + 18558.

It is an arithmetic number, because the mean of its divisors is an integer number (3420872).

Almost surely, 2^130242420 is an apocalyptic number.

130242420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130242420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246302784).

130242420 is an abundant number, since it is smaller than the sum of its proper divisors (362363148).

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

130242420 is a wasteful number, since it uses less digits than its factorization.

130242420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9430 (or 9425 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 130242420 is about 11412.3801198523. The cubic root of 130242420 is about 506.8943911305.

Adding to 130242420 its reverse (24242031), we get a palindrome (154484451).

The spelling of 130242420 in words is "one hundred thirty million, two hundred forty-two thousand, four hundred twenty".