1216441262 has 16 divisors (see below), whose sum is σ = 1831944192. Its totient is φ = 605799000.

The previous prime is 1216441253. The next prime is 1216441297. The reversal of 1216441262 is 2621446121.

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, 730643 + ... + 732305.

It is an arithmetic number, because the mean of its divisors is an integer number (114496512).

Almost surely, 2^1216441262 is an apocalyptic number.

1216441262 is a deficient number, since it is larger than the sum of its proper divisors (615502930).

1216441262 is a wasteful number, since it uses less digits than its factorization.

1216441262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903.

The product of its digits is 4608, while the sum is 29.

The square root of 1216441262 is about 34877.5180022891. The cubic root of 1216441262 is about 1067.4897517970.

Adding to 1216441262 its reverse (2621446121), we get a palindrome (3837887383).

The spelling of 1216441262 in words is "one billion, two hundred sixteen million, four hundred forty-one thousand, two hundred sixty-two".