1940529 has 4 divisors (see below), whose sum is σ = 2587376. Its totient is φ = 1293684.

The previous prime is 1940509. The next prime is 1940537. The reversal of 1940529 is 9250491.

It is a happy number.

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 not a de Polignac number, because 1940529 - 2⁷ = 1940401 is a prime.

It is a D-number.

It is a Duffinian number.

1940529 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1940496 and 1940505.

It is not an unprimeable number, because it can be changed into a prime (1940509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323419 + ... + 323424.

It is an arithmetic number, because the mean of its divisors is an integer number (646844).

2^1940529 is an apocalyptic number.

It is an amenable number.

1940529 is a deficient number, since it is larger than the sum of its proper divisors (646847).

1940529 is an equidigital number, since it uses as much as digits as its factorization.

1940529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646846.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1940529 is about 1393.0287147076. The cubic root of 1940529 is about 124.7307055941.

The spelling of 1940529 in words is "one million, nine hundred forty thousand, five hundred twenty-nine".