838930761940 has 24 divisors (see below), whose sum is σ = 1764503074152. Its totient is φ = 335048785920.

The previous prime is 838930761923. The next prime is 838930761943. The reversal of 838930761940 is 49167039838.

It can be written as a sum of positive squares in 4 ways, for example, as 278441960976 + 560488800964 = 527676^2 + 748658^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838930761943) by changing a digit.

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, 32706789 + ... + 32732428.

It is an arithmetic number, because the mean of its divisors is an integer number (73520961423).

Almost surely, 2^838930761940 is an apocalyptic number.

It is an amenable number.

838930761940 is an abundant number, since it is smaller than the sum of its proper divisors (925572312212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

838930761940 is a wasteful number, since it uses less digits than its factorization.

838930761940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65439867 (or 65439865 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 58.

The spelling of 838930761940 in words is "eight hundred thirty-eight billion, nine hundred thirty million, seven hundred sixty-one thousand, nine hundred forty".