3140445 has 32 divisors (see below), whose sum is σ = 6266880. Its totient is φ = 1304640.

The previous prime is 3140441. The next prime is 3140447. The reversal of 3140445 is 5440413.

3140445 = T₁₂₀ + T₁₂₁ + ... + T₂₇₃.

It is not a de Polignac number, because 3140445 - 2² = 3140441 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3140441) 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, 205 + ... + 2514.

It is an arithmetic number, because the mean of its divisors is an integer number (195840).

Almost surely, 2^3140445 is an apocalyptic number.

3140445 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3140445 is a deficient number, since it is larger than the sum of its proper divisors (3126435).

3140445 is a wasteful number, since it uses less digits than its factorization.

3140445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 3140445 is about 1772.1300742327. The cubic root of 3140445 is about 146.4413522738.

Adding to 3140445 its reverse (5440413), we get a palindrome (8580858).

Subtracting 3140445 from its reverse (5440413), we obtain a cube (2299968 = 132³).

The spelling of 3140445 in words is "three million, one hundred forty thousand, four hundred forty-five".