1388274 has 8 divisors (see below), whose sum is σ = 2776560. Its totient is φ = 462756.

The previous prime is 1388269. The next prime is 1388279. The reversal of 1388274 is 4728831.

It is an interprime number because it is at equal distance from previous prime (1388269) and next prime (1388279).

It is a sphenic number, since it is the product of 3 distinct primes.

1388274 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1388279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115684 + ... + 115695.

It is an arithmetic number, because the mean of its divisors is an integer number (347070).

2^1388274 is an apocalyptic number.

1388274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1388274 is a wasteful number, since it uses less digits than its factorization.

1388274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231384.

The product of its digits is 10752, while the sum is 33.

The square root of 1388274 is about 1178.2503978357. The cubic root of 1388274 is about 111.5556908413. Note that the first 3 decimals are identical.

It can be divided in two parts, 138827 and 4, that added together give a palindrome (138831).

The spelling of 1388274 in words is "one million, three hundred eighty-eight thousand, two hundred seventy-four".