1940931782 has 32 divisors (see below), whose sum is σ = 2987228160. Its totient is φ = 945642240.

The previous prime is 1940931779. The next prime is 1940931799. The reversal of 1940931782 is 2871390491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4503107 + ... + 4503537.

It is an arithmetic number, because the mean of its divisors is an integer number (93350880).

Almost surely, 2^1940931782 is an apocalyptic number.

1940931782 is a deficient number, since it is larger than the sum of its proper divisors (1046296378).

1940931782 is a wasteful number, since it uses less digits than its factorization.

1940931782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 1940931782 is about 44056.0073315774. The cubic root of 1940931782 is about 1247.3933482316.

The spelling of 1940931782 in words is "one billion, nine hundred forty million, nine hundred thirty-one thousand, seven hundred eighty-two".