242044140 has 48 divisors (see below), whose sum is σ = 729858528. Its totient is φ = 59579904.

The previous prime is 242044087. The next prime is 242044141. The reversal of 242044140 is 41440242.

It is a super-3 number, since 3×242044140³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (242044141) 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, 154377 + ... + 155936.

It is an arithmetic number, because the mean of its divisors is an integer number (15205386).

Almost surely, 2^242044140 is an apocalyptic number.

242044140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242044140 is an abundant number, since it is smaller than the sum of its proper divisors (487814388).

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

242044140 is a wasteful number, since it uses less digits than its factorization.

242044140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310338 (or 310336 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 242044140 is about 15557.7678347506. The cubic root of 242044140 is about 623.2058540595.

Adding to 242044140 its reverse (41440242), we get a palindrome (283484382).

The spelling of 242044140 in words is "two hundred forty-two million, forty-four thousand, one hundred forty".