3161730 has 96 divisors (see below), whose sum is σ = 9116352. Its totient is φ = 696960.

The previous prime is 3161707. The next prime is 3161749. The reversal of 3161730 is 371613.

It is a junction number, because it is equal to n+sod(n) for n = 3161697 and 3161706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47157 + ... + 47223.

It is an arithmetic number, because the mean of its divisors is an integer number (94962).

Almost surely, 2^3161730 is an apocalyptic number.

3161730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3161730 is the 1452-nd pentagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3161730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4558176).

3161730 is an abundant number, since it is smaller than the sum of its proper divisors (5954622).

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

3161730 is a wasteful number, since it uses less digits than its factorization.

3161730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 3161730 is about 1778.1254173989. The cubic root of 3161730 is about 146.7714528953.

The spelling of 3161730 in words is "three million, one hundred sixty-one thousand, seven hundred thirty".