244142140 has 24 divisors (see below), whose sum is σ = 559307952. Its totient is φ = 88778880.

The previous prime is 244142051. The next prime is 244142159. The reversal of 244142140 is 41241442.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554649 + ... + 555088.

It is an arithmetic number, because the mean of its divisors is an integer number (23304498).

Almost surely, 2^244142140 is an apocalyptic number.

244142140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244142140 is an abundant number, since it is smaller than the sum of its proper divisors (315165812).

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

244142140 is a wasteful number, since it uses less digits than its factorization.

244142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109757 (or 1109755 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 244142140 is about 15625.0484799248. The cubic root of 244142140 is about 625.0012927973.

Adding to 244142140 its reverse (41241442), we get a palindrome (285383582).

The spelling of 244142140 in words is "two hundred forty-four million, one hundred forty-two thousand, one hundred forty".