2439398399828 has 48 divisors (see below), whose sum is σ = 4667862496080. Its totient is φ = 1108652396544.

The previous prime is 2439398399819. The next prime is 2439398399831. The reversal of 2439398399828 is 8289938939342.

It can be written as a sum of positive squares in 8 ways, for example, as 633444075664 + 1805954324164 = 795892^2 + 1343858^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1821368 + ... + 2862896.

It is an arithmetic number, because the mean of its divisors is an integer number (97247135335).

Almost surely, 2^{2439398399828} is an apocalyptic number.

It is an amenable number.

2439398399828 is a deficient number, since it is larger than the sum of its proper divisors (2228464096252).

2439398399828 is a wasteful number, since it uses less digits than its factorization.

2439398399828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042236 (or 1042234 counting only the distinct ones).

The product of its digits is 1451188224, while the sum is 77.

The spelling of 2439398399828 in words is "two trillion, four hundred thirty-nine billion, three hundred ninety-eight million, three hundred ninety-nine thousand, eight hundred twenty-eight".