1940547814 has 4 divisors (see below), whose sum is σ = 2910821724. Its totient is φ = 970273906.

The previous prime is 1940547811. The next prime is 1940547823. The reversal of 1940547814 is 4187450491.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940547811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485136952 + ... + 485136955.

It is an arithmetic number, because the mean of its divisors is an integer number (727705431).

Almost surely, 2^1940547814 is an apocalyptic number.

1940547814 is a deficient number, since it is larger than the sum of its proper divisors (970273910).

1940547814 is an equidigital number, since it uses as much as digits as its factorization.

1940547814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970273909.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 1940547814 is about 44051.6493902328. The cubic root of 1940547814 is about 1247.3110869314.

The spelling of 1940547814 in words is "one billion, nine hundred forty million, five hundred forty-seven thousand, eight hundred fourteen".