1940663283 has 32 divisors (see below), whose sum is σ = 2873591616. Its totient is φ = 1157234688.

The previous prime is 1940663281. The next prime is 1940663293. The reversal of 1940663283 is 3823660491.

It is not a de Polignac number, because 1940663283 - 2¹ = 1940663281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1940663281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 368235 + ... + 373467.

It is an arithmetic number, because the mean of its divisors is an integer number (89799738).

Almost surely, 2^1940663283 is an apocalyptic number.

1940663283 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1940663283 is a deficient number, since it is larger than the sum of its proper divisors (932928333).

1940663283 is a wasteful number, since it uses less digits than its factorization.

1940663283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5543.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 1940663283 is about 44052.9599800059. The cubic root of 1940663283 is about 1247.3358261496.

The spelling of 1940663283 in words is "one billion, nine hundred forty million, six hundred sixty-three thousand, two hundred eighty-three".