1390050 has 36 divisors (see below), whose sum is σ = 3735810. Its totient is φ = 370560.

The previous prime is 1390043. The next prime is 1390069. The reversal of 1390050 is 500931.

It can be written as a sum of positive squares in 3 ways, for example, as 1279161 + 110889 = 1131^2 + 333^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

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 17 ways as a sum of consecutive naturals, for example, 1095 + ... + 1994.

2^1390050 is an apocalyptic number.

1390050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1390050 is an abundant number, since it is smaller than the sum of its proper divisors (2345760).

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

1390050 is a wasteful number, since it uses less digits than its factorization.

1390050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107 (or 3099 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 1390050 is about 1179.0038167877. The cubic root of 1390050 is about 111.6032411284.

Adding to 1390050 its reverse (500931), we get a palindrome (1890981).

The spelling of 1390050 in words is "one million, three hundred ninety thousand, fifty".