139042449000 has 1152 divisors, whose sum is σ = 598139942400. Its totient is φ = 28870732800.

The previous prime is 139042448983. The next prime is 139042449023. The reversal of 139042449000 is 944240931.

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

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 452906847 + ... + 452907153.

It is an arithmetic number, because the mean of its divisors is an integer number (519218700).

Almost surely, 2^139042449000 is an apocalyptic number.

139042449000 is a gapful number since it is divisible by the number (10) 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 139042449000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299069971200).

139042449000 is an abundant number, since it is smaller than the sum of its proper divisors (459097493400).

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

139042449000 is a wasteful number, since it uses less digits than its factorization.

139042449000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

Adding to 139042449000 its reverse (944240931), we get a palindrome (139986689931).

The spelling of 139042449000 in words is "one hundred thirty-nine billion, forty-two million, four hundred forty-nine thousand".