1211830748 has 24 divisors (see below), whose sum is σ = 2131826928. Its totient is φ = 602747136.

The previous prime is 1211830729. The next prime is 1211830759. The reversal of 1211830748 is 8470381121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779540 + ... + 781092.

It is an arithmetic number, because the mean of its divisors is an integer number (88826122).

Almost surely, 2^1211830748 is an apocalyptic number.

It is an amenable number.

1211830748 is a deficient number, since it is larger than the sum of its proper divisors (919996180).

1211830748 is a wasteful number, since it uses less digits than its factorization.

1211830748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453 (or 2451 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 1211830748 is about 34811.3594678519. The cubic root of 1211830748 is about 1066.1393899628.

The spelling of 1211830748 in words is "one billion, two hundred eleven million, eight hundred thirty thousand, seven hundred forty-eight".