1940527387 has 4 divisors (see below), whose sum is σ = 1940615496. Its totient is φ = 1940439280.

The previous prime is 1940527343. The next prime is 1940527403. The reversal of 1940527387 is 7837250491.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1940527387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1940527307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21312 + ... + 65842.

It is an arithmetic number, because the mean of its divisors is an integer number (485153874).

Almost surely, 2^1940527387 is an apocalyptic number.

1940527387 is a deficient number, since it is larger than the sum of its proper divisors (88109).

1940527387 is an equidigital number, since it uses as much as digits as its factorization.

1940527387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88108.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 1940527387 is about 44051.4175367831. The cubic root of 1940527387 is about 1247.3067103472.

The spelling of 1940527387 in words is "one billion, nine hundred forty million, five hundred twenty-seven thousand, three hundred eighty-seven".