1940402752 has 14 divisors (see below), whose sum is σ = 3850486838. Its totient is φ = 970201344.

The previous prime is 1940402719. The next prime is 1940402753. The reversal of 1940402752 is 2572040491.

It can be written as a sum of positive squares in only one way, i.e., 1786245696 + 154157056 = 42264^2 + 12416^2 .

It is not an unprimeable number, because it can be changed into a prime (1940402753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15159333 + ... + 15159460.

Almost surely, 2^1940402752 is an apocalyptic number.

It is an amenable number.

1940402752 is a deficient number, since it is larger than the sum of its proper divisors (1910084086).

1940402752 is an equidigital number, since it uses as much as digits as its factorization.

1940402752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30318805 (or 30318795 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1940402752 is about 44050.0028603858. The cubic root of 1940402752 is about 1247.2800060259.

The spelling of 1940402752 in words is "one billion, nine hundred forty million, four hundred two thousand, seven hundred fifty-two".