1940402495 has 8 divisors (see below), whose sum is σ = 2329175040. Its totient is φ = 1551860640.

The previous prime is 1940402489. The next prime is 1940402533. The reversal of 1940402495 is 5942040491.

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

It is not a de Polignac number, because 1940402495 - 2⁴ = 1940402479 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 38591 + ... + 73280.

It is an arithmetic number, because the mean of its divisors is an integer number (291146880).

Almost surely, 2^1940402495 is an apocalyptic number.

1940402495 is a deficient number, since it is larger than the sum of its proper divisors (388772545).

1940402495 is a wasteful number, since it uses less digits than its factorization.

1940402495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115345.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1940402495 is about 44049.9999432463. Note that the first 4 decimals coincide. The cubic root of 1940402495 is about 1247.2799509599.

The spelling of 1940402495 in words is "one billion, nine hundred forty million, four hundred two thousand, four hundred ninety-five".