1940213 has 4 divisors (see below), whose sum is σ = 2116608. Its totient is φ = 1763820.

The previous prime is 1940201. The next prime is 1940219. The reversal of 1940213 is 3120491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1940213 - 2⁶ = 1940149 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 (1940219) 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, 88181 + ... + 88202.

It is an arithmetic number, because the mean of its divisors is an integer number (529152).

2^1940213 is an apocalyptic number.

It is an amenable number.

1940213 is a deficient number, since it is larger than the sum of its proper divisors (176395).

1940213 is a wasteful number, since it uses less digits than its factorization.

1940213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176394.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1940213 is about 1392.9152881636. The cubic root of 1940213 is about 124.7239347527.

The spelling of 1940213 in words is "one million, nine hundred forty thousand, two hundred thirteen".