3139420626 has 64 divisors (see below), whose sum is σ = 7236915840. Its totient is φ = 1008080640.

The previous prime is 3139420591. The next prime is 3139420637. The reversal of 3139420626 is 6260249313.

3139420626 is a `hidden beast` number, since 3 + 1 + 3 + 9 + 4 + 20 + 626 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160246 + ... + 178766.

It is an arithmetic number, because the mean of its divisors is an integer number (113076810).

Almost surely, 2^3139420626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3139420626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3618457920).

3139420626 is an abundant number, since it is smaller than the sum of its proper divisors (4097495214).

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

3139420626 is a wasteful number, since it uses less digits than its factorization.

3139420626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18648 (or 18642 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 3139420626 is about 56030.5329797959. The cubic root of 3139420626 is about 1464.2542809458.

Adding to 3139420626 its reverse (6260249313), we get a palindrome (9399669939).

The spelling of 3139420626 in words is "three billion, one hundred thirty-nine million, four hundred twenty thousand, six hundred twenty-six".