1242181260 has 36 divisors (see below), whose sum is σ = 3767950368. Its totient is φ = 331248288.

The previous prime is 1242181249. The next prime is 1242181319. The reversal of 1242181260 is 621812421.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3450324 + ... + 3450683.

It is an arithmetic number, because the mean of its divisors is an integer number (104665288).

Almost surely, 2^1242181260 is an apocalyptic number.

1242181260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242181260 is an abundant number, since it is smaller than the sum of its proper divisors (2525769108).

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

1242181260 is a wasteful number, since it uses less digits than its factorization.

1242181260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6901022 (or 6901017 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1242181260 is about 35244.5919255707. The cubic root of 1242181260 is about 1074.9666504888.

Adding to 1242181260 its reverse (621812421), we get a palindrome (1863993681).

The spelling of 1242181260 in words is "one billion, two hundred forty-two million, one hundred eighty-one thousand, two hundred sixty".