1211842488 has 32 divisors (see below), whose sum is σ = 3134077200. Its totient is φ = 390018048.

The previous prime is 1211842481. The next prime is 1211842493. The reversal of 1211842488 is 8842481121.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211842481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869881 + ... + 871272.

Almost surely, 2^1211842488 is an apocalyptic number.

It is an amenable number.

1211842488 is an abundant number, since it is smaller than the sum of its proper divisors (1922234712).

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

1211842488 is a wasteful number, since it uses less digits than its factorization.

1211842488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741191 (or 1741187 counting only the distinct ones).

The product of its digits is 32768, while the sum is 39.

The square root of 1211842488 is about 34811.5280905622. The cubic root of 1211842488 is about 1066.1428328077.

The spelling of 1211842488 in words is "one billion, two hundred eleven million, eight hundred forty-two thousand, four hundred eighty-eight".