1940534 has 4 divisors (see below), whose sum is σ = 2910804. Its totient is φ = 970266.

The previous prime is 1940509. The next prime is 1940537. The reversal of 1940534 is 4350491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4350491 = 937 ⋅4643.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485132 + ... + 485135.

It is an arithmetic number, because the mean of its divisors is an integer number (727701).

2^1940534 is an apocalyptic number.

1940534 is a deficient number, since it is larger than the sum of its proper divisors (970270).

1940534 is an equidigital number, since it uses as much as digits as its factorization.

1940534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970269.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1940534 is about 1393.0305093572. The cubic root of 1940534 is about 124.7308127218.

The spelling of 1940534 in words is "one million, nine hundred forty thousand, five hundred thirty-four".