39398400000 has 840 divisors, whose sum is σ = 154860635160. Its totient is φ = 9953280000.

The previous prime is 39398399983. The next prime is 39398400001. The reversal of 39398400000 is 489393.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39398400001) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2073599991 + ... + 2073600009.

It is an arithmetic number, because the mean of its divisors is an integer number (184357899).

Almost surely, 2^39398400000 is an apocalyptic number.

39398400000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39398400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77430317580).

39398400000 is an abundant number, since it is smaller than the sum of its proper divisors (115462235160).

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

39398400000 is an frugal number, since it uses more digits than its factorization.

39398400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 29 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

Adding to 39398400000 its reverse (489393), we get a palindrome (39398889393).

The spelling of 39398400000 in words is "thirty-nine billion, three hundred ninety-eight million, four hundred thousand".