1338550 has 24 divisors (see below), whose sum is σ = 2622600. Its totient is φ = 506880.

The previous prime is 1338539. The next prime is 1338551. The reversal of 1338550 is 558331.

It is a happy number.

It is a super-2 number, since 2×1338550² = 3583432205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338551) 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 11 ways as a sum of consecutive naturals, for example, 246 + ... + 1654.

It is an arithmetic number, because the mean of its divisors is an integer number (109275).

2^1338550 is an apocalyptic number.

1338550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1338550 is a deficient number, since it is larger than the sum of its proper divisors (1284050).

1338550 is a wasteful number, since it uses less digits than its factorization.

1338550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440 (or 1435 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1338550 is about 1156.9572161493. The cubic root of 1338550 is about 110.2075969480.

The spelling of 1338550 in words is "one million, three hundred thirty-eight thousand, five hundred fifty".