3165440 has 36 divisors (see below), whose sum is σ = 7585284. Its totient is φ = 1265664.

The previous prime is 3165439. The next prime is 3165479. The reversal of 3165440 is 445613.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1763584 + 1401856 = 1328^2 + 1184^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44 + ... + 2516.

Almost surely, 2^3165440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3165440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3792642).

3165440 is an abundant number, since it is smaller than the sum of its proper divisors (4419844).

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

3165440 is an equidigital number, since it uses as much as digits as its factorization.

3165440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494 (or 2480 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 3165440 is about 1779.1683450421. The cubic root of 3165440 is about 146.8288380659.

The spelling of 3165440 in words is "three million, one hundred sixty-five thousand, four hundred forty".