1211465632 has 96 divisors (see below), whose sum is σ = 2628218880. Its totient is φ = 546324480.

The previous prime is 1211465623. The next prime is 1211465639. The reversal of 1211465632 is 2365641121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1211465594 and 1211465603.

It is not an unprimeable number, because it can be changed into a prime (1211465639) 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, 6276928 + ... + 6277120.

It is an arithmetic number, because the mean of its divisors is an integer number (27377280).

Almost surely, 2^1211465632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1211465632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1314109440).

1211465632 is an abundant number, since it is smaller than the sum of its proper divisors (1416753248).

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

1211465632 is a wasteful number, since it uses less digits than its factorization.

1211465632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 478 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 1211465632 is about 34806.1148650636. The cubic root of 1211465632 is about 1066.0323057980.

The spelling of 1211465632 in words is "one billion, two hundred eleven million, four hundred sixty-five thousand, six hundred thirty-two".