3139860 has 48 divisors (see below), whose sum is σ = 9003456. Its totient is φ = 817152.

The previous prime is 3139847. The next prime is 3139861. The reversal of 3139860 is 689313.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3139861) 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, 1972 + ... + 3188.

It is an arithmetic number, because the mean of its divisors is an integer number (187572).

Almost surely, 2^3139860 is an apocalyptic number.

3139860 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 3139860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4501728).

3139860 is an abundant number, since it is smaller than the sum of its proper divisors (5863596).

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

3139860 is a wasteful number, since it uses less digits than its factorization.

3139860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 3139860 is about 1771.9650109412. The cubic root of 3139860 is about 146.4322587100.

The spelling of 3139860 in words is "three million, one hundred thirty-nine thousand, eight hundred sixty".