1361888 has 48 divisors (see below), whose sum is σ = 3020976. Its totient is φ = 599040.

The previous prime is 1361879. The next prime is 1361903. The reversal of 1361888 is 8881631.

It is a happy number.

It is a Cunningham number, because it is equal to 1167²-1.

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, 18620 + ... + 18692.

It is an arithmetic number, because the mean of its divisors is an integer number (62937).

2^1361888 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 1361888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1510488).

1361888 is an abundant number, since it is smaller than the sum of its proper divisors (1659088).

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

1361888 is a wasteful number, since it uses less digits than its factorization.

1361888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 139 counting only the distinct ones).

The product of its digits is 9216, while the sum is 35.

The square root of 1361888 is about 1166.9995715509. Note that the first 3 decimals coincide. The cubic root of 1361888 is about 110.8444104230.

The spelling of 1361888 in words is "one million, three hundred sixty-one thousand, eight hundred eighty-eight".