1389190 has 32 divisors (see below), whose sum is σ = 2781216. Its totient is φ = 495360.

The previous prime is 1389173. The next prime is 1389191. The reversal of 1389190 is 919831.

It is a super-2 number, since 2×1389190² = 3859697712200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7944 + ... + 8116.

It is an arithmetic number, because the mean of its divisors is an integer number (86913).

2^1389190 is an apocalyptic number.

1389190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1389190 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1389190 is a wasteful number, since it uses less digits than its factorization.

1389190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 1389190 is about 1178.6390456794. The cubic root of 1389190 is about 111.5802207124.

The spelling of 1389190 in words is "one million, three hundred eighty-nine thousand, one hundred ninety".