1241442140 has 48 divisors (see below), whose sum is σ = 2750160000. Its totient is φ = 469426752.

The previous prime is 1241442131. The next prime is 1241442143. The reversal of 1241442140 is 412441421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241442143) 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, 186347 + ... + 192893.

It is an arithmetic number, because the mean of its divisors is an integer number (57295000).

Almost surely, 2^1241442140 is an apocalyptic number.

1241442140 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 1241442140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1375080000).

1241442140 is an abundant number, since it is smaller than the sum of its proper divisors (1508717860).

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

1241442140 is a wasteful number, since it uses less digits than its factorization.

1241442140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7074 (or 7072 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1241442140 is about 35234.1047849949. The cubic root of 1241442140 is about 1074.7534000787.

Adding to 1241442140 its reverse (412441421), we get a palindrome (1653883561).

The spelling of 1241442140 in words is "one billion, two hundred forty-one million, four hundred forty-two thousand, one hundred forty".