1940968915 has 8 divisors (see below), whose sum is σ = 2373109488. Its totient is φ = 1523477280.

The previous prime is 1940968901. The next prime is 1940968973. The reversal of 1940968915 is 5198690491.

It is a happy number.

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

It is not a de Polignac number, because 1940968915 - 2²⁷ = 1806751187 is a prime.

It is a super-3 number, since 3×1940968915³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3661941 + ... + 3662470.

It is an arithmetic number, because the mean of its divisors is an integer number (296638686).

Almost surely, 2^1940968915 is an apocalyptic number.

1940968915 is a deficient number, since it is larger than the sum of its proper divisors (432140573).

1940968915 is an equidigital number, since it uses as much as digits as its factorization.

1940968915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7324469.

The product of its (nonzero) digits is 699840, while the sum is 52.

The square root of 1940968915 is about 44056.4287590358. The cubic root of 1940968915 is about 1247.4013030298.

The spelling of 1940968915 in words is "one billion, nine hundred forty million, nine hundred sixty-eight thousand, nine hundred fifteen".