3140256 has 48 divisors (see below), whose sum is σ = 9422784. Its totient is φ = 897024.

The previous prime is 3140251. The next prime is 3140273. The reversal of 3140256 is 6520413.

It is a happy number.

3140256 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×3140256² = 19722415491072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

3140256 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (3140251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1665 + ... + 3008.

It is an arithmetic number, because the mean of its divisors is an integer number (196308).

Almost surely, 2^3140256 is an apocalyptic number.

It is an amenable number.

3140256 is an abundant number, since it is smaller than the sum of its proper divisors (6282528).

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

3140256 is a wasteful number, since it uses less digits than its factorization.

3140256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693 (or 4685 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3140256 is about 1772.0767477736. The cubic root of 3140256 is about 146.4384144767.

Adding to 3140256 its reverse (6520413), we get a palindrome (9660669).

The spelling of 3140256 in words is "three million, one hundred forty thousand, two hundred fifty-six".