1940485 has 8 divisors (see below), whose sum is σ = 2353176. Its totient is φ = 1536000.

The previous prime is 1940483. The next prime is 1940509. The reversal of 1940485 is 5840491.

1940485 = 436² + 437² + ... + 445².

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 36 + 1940449 = 6^2 + 1393^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1940485 - 2¹ = 1940483 is a prime.

It is a Duffinian number.

1940485 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1516 + ... + 2485.

It is an arithmetic number, because the mean of its divisors is an integer number (294147).

2^1940485 is an apocalyptic number.

It is an amenable number.

1940485 is a deficient number, since it is larger than the sum of its proper divisors (412691).

1940485 is an equidigital number, since it uses as much as digits as its factorization.

1940485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1940485 is about 1393.0129216917. The cubic root of 1940485 is about 124.7297628628.

It can be divided in two parts, 1940 and 485, that multiplied together give a square (940900 = 970²).

The spelling of 1940485 in words is "one million, nine hundred forty thousand, four hundred eighty-five".