1388450 has 24 divisors (see below), whose sum is σ = 2952192. Its totient is φ = 475920.

The previous prime is 1388449. The next prime is 1388461. The reversal of 1388450 is 548831.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1634 + ... + 2333.

It is an arithmetic number, because the mean of its divisors is an integer number (123008).

2^1388450 is an apocalyptic number.

1388450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1388450 is an abundant number, since it is smaller than the sum of its proper divisors (1563742).

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

1388450 is a wasteful number, since it uses less digits than its factorization.

1388450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3986 (or 3981 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1388450 is about 1178.3250824794. The cubic root of 1388450 is about 111.5604048416.

The spelling of 1388450 in words is "one million, three hundred eighty-eight thousand, four hundred fifty".