2940447 has 4 divisors (see below), whose sum is σ = 3920600. Its totient is φ = 1960296.

The previous prime is 2940437. The next prime is 2940449. The reversal of 2940447 is 7440492.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-2940447 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2940449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490072 + ... + 490077.

It is an arithmetic number, because the mean of its divisors is an integer number (980150).

2^2940447 is an apocalyptic number.

2940447 is a deficient number, since it is larger than the sum of its proper divisors (980153).

2940447 is an equidigital number, since it uses as much as digits as its factorization.

2940447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980152.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 2940447 is about 1714.7731628411. The cubic root of 2940447 is about 143.2642350677.

The spelling of 2940447 in words is "two million, nine hundred forty thousand, four hundred forty-seven".