3139398780 has 48 divisors (see below), whose sum is σ = 10046077440. Its totient is φ = 717576768.

The previous prime is 3139398719. The next prime is 3139398781. The reversal of 3139398780 is 878939313.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3139398781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3736960 + ... + 3737799.

It is an arithmetic number, because the mean of its divisors is an integer number (209293280).

Almost surely, 2^3139398780 is an apocalyptic number.

3139398780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3139398780 is an abundant number, since it is smaller than the sum of its proper divisors (6906678660).

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

3139398780 is a wasteful number, since it uses less digits than its factorization.

3139398780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7474778 (or 7474776 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 3139398780 is about 56030.3380321768. The cubic root of 3139398780 is about 1464.2508845470.

The spelling of 3139398780 in words is "three billion, one hundred thirty-nine million, three hundred ninety-eight thousand, seven hundred eighty".