242130040 has 16 divisors (see below), whose sum is σ = 544792680. Its totient is φ = 96852000.

The previous prime is 242130029. The next prime is 242130043. The reversal of 242130040 is 40031242.

It is a junction number, because it is equal to n+sod(n) for n = 242129996 and 242130023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242130043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3026586 + ... + 3026665.

Almost surely, 2^242130040 is an apocalyptic number.

242130040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242130040 is an abundant number, since it is smaller than the sum of its proper divisors (302662640).

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

242130040 is a wasteful number, since it uses less digits than its factorization.

242130040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6053262 (or 6053258 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 242130040 is about 15560.5282686675. The cubic root of 242130040 is about 623.2795693347.

Adding to 242130040 its reverse (40031242), we get a palindrome (282161282).

The spelling of 242130040 in words is "two hundred forty-two million, one hundred thirty thousand, forty".