1216341350 has 24 divisors (see below), whose sum is σ = 2585594928. Its totient is φ = 417031200.

The previous prime is 1216341349. The next prime is 1216341353. The reversal of 1216341350 is 531436121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216341353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1737281 + ... + 1737980.

It is an arithmetic number, because the mean of its divisors is an integer number (107733122).

Almost surely, 2^1216341350 is an apocalyptic number.

1216341350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1216341350 is an abundant number, since it is smaller than the sum of its proper divisors (1369253578).

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

1216341350 is a wasteful number, since it uses less digits than its factorization.

1216341350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3475280 (or 3475275 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1216341350 is about 34876.0856461845. The cubic root of 1216341350 is about 1067.4605250245.

Adding to 1216341350 its reverse (531436121), we get a palindrome (1747777471).

The spelling of 1216341350 in words is "one billion, two hundred sixteen million, three hundred forty-one thousand, three hundred fifty".