1216376 has 48 divisors (see below), whose sum is σ = 2770200. Its totient is φ = 498624.

The previous prime is 1216373. The next prime is 1216379. The reversal of 1216376 is 6736121.

It is an interprime number because it is at equal distance from previous prime (1216373) and next prime (1216379).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11315 + ... + 11421.

2^1216376 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 1216376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1385100).

1216376 is an abundant number, since it is smaller than the sum of its proper divisors (1553824).

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

1216376 is a wasteful number, since it uses less digits than its factorization.

1216376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 145 counting only the distinct ones).

The product of its digits is 1512, while the sum is 26.

The square root of 1216376 is about 1102.8943739089. The cubic root of 1216376 is about 106.7470661202.

The spelling of 1216376 in words is "one million, two hundred sixteen thousand, three hundred seventy-six".