1388196 has 18 divisors (see below), whose sum is σ = 3509142. Its totient is φ = 462720.

The previous prime is 1388183. The next prime is 1388227. The reversal of 1388196 is 6918831.

It can be written as a sum of positive squares in only one way, i.e., 1028196 + 360000 = 1014^2 + 600^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 38561 = 1388196 / (1 + 3 + 8 + 8 + 1 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 1388196.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19245 + ... + 19316.

2^1388196 is an apocalyptic number.

It is an amenable number.

1388196 is an abundant number, since it is smaller than the sum of its proper divisors (2120946).

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

1388196 is a wasteful number, since it uses less digits than its factorization.

1388196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38571 (or 38566 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 1388196 is about 1178.2172974456. The cubic root of 1388196 is about 111.5536015547.

It can be divided in two parts, 13 and 88196, that added together give a square (88209 = 297²).

The spelling of 1388196 in words is "one million, three hundred eighty-eight thousand, one hundred ninety-six".