242213140 has 48 divisors (see below), whose sum is σ = 576616320. Its totient is φ = 84723840.

The previous prime is 242213129. The next prime is 242213141. The reversal of 242213140 is 41312242.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242213141) 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, 19576 + ... + 29455.

It is an arithmetic number, because the mean of its divisors is an integer number (12012840).

Almost surely, 2^242213140 is an apocalyptic number.

242213140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242213140 is an abundant number, since it is smaller than the sum of its proper divisors (334403180).

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

242213140 is a wasteful number, since it uses less digits than its factorization.

242213140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49072 (or 49070 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 242213140 is about 15563.1982574277. The cubic root of 242213140 is about 623.3508651943.

Adding to 242213140 its reverse (41312242), we get a palindrome (283525382).

The spelling of 242213140 in words is "two hundred forty-two million, two hundred thirteen thousand, one hundred forty".