1236378 has 48 divisors (see below), whose sum is σ = 2949408. Its totient is φ = 343200.

The previous prime is 1236337. The next prime is 1236383. The reversal of 1236378 is 8736321.

1236378 is a nontrivial binomial coefficient, being equal to C(1573, 2).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9373 + ... + 9503.

It is an arithmetic number, because the mean of its divisors is an integer number (61446).

2^1236378 is an apocalyptic number.

1236378 is the 1572-nd triangular number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1236378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1474704).

1236378 is an abundant number, since it is smaller than the sum of its proper divisors (1713030).

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

1236378 is a wasteful number, since it uses less digits than its factorization.

1236378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 160 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 1236378 is about 1111.9253572070. The cubic root of 1236378 is about 107.3290016212.

The spelling of 1236378 in words is "one million, two hundred thirty-six thousand, three hundred seventy-eight".