1940207 has 4 divisors (see below), whose sum is σ = 1981536. Its totient is φ = 1898880.

The previous prime is 1940201. The next prime is 1940219. The reversal of 1940207 is 7020491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7020491 = 37 ⋅189743.

It is a cyclic number.

It is not a de Polignac number, because 1940207 - 2⁶ = 1940143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20594 + ... + 20687.

It is an arithmetic number, because the mean of its divisors is an integer number (495384).

2^1940207 is an apocalyptic number.

1940207 is a deficient number, since it is larger than the sum of its proper divisors (41329).

1940207 is an equidigital number, since it uses as much as digits as its factorization.

1940207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41328.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1940207 is about 1392.9131344057. The cubic root of 1940207 is about 124.7238061853.

Adding to 1940207 its reverse (7020491), we get a palindrome (8960698).

The spelling of 1940207 in words is "one million, nine hundred forty thousand, two hundred seven".