3145740 has 96 divisors (see below), whose sum is σ = 9831360. Its totient is φ = 746496.

The previous prime is 3145739. The next prime is 3145741. The reversal of 3145740 is 475413.

It is an interprime number because it is at equal distance from previous prime (3145739) and next prime (3145741).

It is a nialpdrome in base 15.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 3145740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28806 + ... + 28914.

It is an arithmetic number, because the mean of its divisors is an integer number (102410).

Almost surely, 2^3145740 is an apocalyptic number.

3145740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3145740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4915680).

3145740 is an abundant number, since it is smaller than the sum of its proper divisors (6685620).

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

3145740 is a wasteful number, since it uses less digits than its factorization.

3145740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 3145740 is about 1773.6234098590. The cubic root of 3145740 is about 146.5236093608.

The spelling of 3145740 in words is "three million, one hundred forty-five thousand, seven hundred forty".