3171402 has 24 divisors (see below), whose sum is σ = 7400484. Its totient is φ = 975744.

The previous prime is 3171383. The next prime is 3171403. The reversal of 3171402 is 2041713.

It can be written as a sum of positive squares in 2 ways, for example, as 3164841 + 6561 = 1779^2 + 81^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3171403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6543 + ... + 7010.

Almost surely, 2^3171402 is an apocalyptic number.

3171402 is an abundant number, since it is smaller than the sum of its proper divisors (4229082).

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

3171402 is a wasteful number, since it uses less digits than its factorization.

3171402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13574 (or 13571 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 3171402 is about 1780.8430587786. The cubic root of 3171402 is about 146.9209626484.

It can be divided in two parts, 3 and 171402, that added together give a triangular number (171405 = T₅₈₅).

The spelling of 3171402 in words is "three million, one hundred seventy-one thousand, four hundred two".