1940136277 has 8 divisors (see below), whose sum is σ = 1988040600. Its totient is φ = 1892259840.

The previous prime is 1940136269. The next prime is 1940136311. The reversal of 1940136277 is 7726310491.

It can be written as a sum of positive squares in 4 ways, for example, as 115906756 + 1824229521 = 10766^2 + 42711^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1940136277 - 2³ = 1940136269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940130277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240099 + ... + 248047.

It is an arithmetic number, because the mean of its divisors is an integer number (248505075).

Almost surely, 2^1940136277 is an apocalyptic number.

It is an amenable number.

1940136277 is a deficient number, since it is larger than the sum of its proper divisors (47904323).

1940136277 is an equidigital number, since it uses as much as digits as its factorization.

1940136277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13943.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 1940136277 is about 44046.9780688755. The cubic root of 1940136277 is about 1247.2229072002. Note that the first 3 decimals are identical.

The spelling of 1940136277 in words is "one billion, nine hundred forty million, one hundred thirty-six thousand, two hundred seventy-seven".