1950390 has 48 divisors (see below), whose sum is σ = 5464368. Its totient is φ = 479808.

The previous prime is 1950383. The next prime is 1950391. The reversal of 1950390 is 930591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1950391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 337 + ... + 2003.

It is an arithmetic number, because the mean of its divisors is an integer number (113841).

2^1950390 is an apocalyptic number.

1950390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1950390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2732184).

1950390 is an abundant number, since it is smaller than the sum of its proper divisors (3513978).

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

1950390 is a wasteful number, since it uses less digits than its factorization.

1950390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693 (or 1690 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 1950390 is about 1396.5636397959. The cubic root of 1950390 is about 124.9416260775.

The spelling of 1950390 in words is "one million, nine hundred fifty thousand, three hundred ninety".