1389050 has 24 divisors (see below), whose sum is σ = 2783676. Its totient is φ = 512640.

The previous prime is 1389007. The next prime is 1389083. The reversal of 1389050 is 509831.

It can be written as a sum of positive squares in 6 ways, for example, as 36481 + 1352569 = 191^2 + 1163^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 419 + ... + 1718.

2^1389050 is an apocalyptic number.

1389050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1389050 is an abundant number, since it is smaller than the sum of its proper divisors (1394626).

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

1389050 is a wasteful number, since it uses less digits than its factorization.

1389050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162 (or 2157 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1389050 is about 1178.5796536510. The cubic root of 1389050 is about 111.5764723037.

The spelling of 1389050 in words is "one million, three hundred eighty-nine thousand, fifty".