3132820 has 12 divisors (see below), whose sum is σ = 6578964. Its totient is φ = 1253120.

The previous prime is 3132803. The next prime is 3132823. The reversal of 3132820 is 282313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 767376 + 2365444 = 876^2 + 1538^2 .

It is a super-2 number, since 2×3132820² = 19629122304800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3132823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78301 + ... + 78340.

It is an arithmetic number, because the mean of its divisors is an integer number (548247).

Almost surely, 2^3132820 is an apocalyptic number.

It is an amenable number.

3132820 is an abundant number, since it is smaller than the sum of its proper divisors (3446144).

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

3132820 is a wasteful number, since it uses less digits than its factorization.

3132820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156650 (or 156648 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3132820 is about 1769.9774009857. The cubic root of 3132820 is about 146.3227363615.

The spelling of 3132820 in words is "three million, one hundred thirty-two thousand, eight hundred twenty".