3140720 has 80 divisors (see below), whose sum is σ = 8249472. Its totient is φ = 1102080.

The previous prime is 3140717. The next prime is 3140741. The reversal of 3140720 is 270413.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 37799 + ... + 37881.

Almost surely, 2^3140720 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 3140720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4124736).

3140720 is an abundant number, since it is smaller than the sum of its proper divisors (5108752).

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

3140720 is a wasteful number, since it uses less digits than its factorization.

3140720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 3140720 is about 1772.2076627754. The cubic root of 3140720 is about 146.4456266358.

The spelling of 3140720 in words is "three million, one hundred forty thousand, seven hundred twenty".