1361388 has 48 divisors (see below), whose sum is σ = 3825920. Its totient is φ = 368064.

The previous prime is 1361387. The next prime is 1361389. The reversal of 1361388 is 8831631.

It is an interprime number because it is at equal distance from previous prime (1361387) and next prime (1361389).

It is not an unprimeable number, because it can be changed into a prime (1361383) 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 15 ways as a sum of consecutive naturals, for example, 1170 + ... + 2022.

2^1361388 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 1361388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1912960).

1361388 is an abundant number, since it is smaller than the sum of its proper divisors (2464532).

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

1361388 is a wasteful number, since it uses less digits than its factorization.

1361388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886 (or 884 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 1361388 is about 1166.7853272989. The cubic root of 1361388 is about 110.8308437202.

The spelling of 1361388 in words is "one million, three hundred sixty-one thousand, three hundred eighty-eight".