2940421 has 12 divisors (see below), whose sum is σ = 3404800. Its totient is φ = 2530440.

The previous prime is 2940419. The next prime is 2940437. The reversal of 2940421 is 1240492.

2940421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2940421 - 2¹ = 2940419 is a prime.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2940392 and 2940401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2940401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1660 + ... + 2938.

2^2940421 is an apocalyptic number.

It is an amenable number.

2940421 is a deficient number, since it is larger than the sum of its proper divisors (464379).

2940421 is a wasteful number, since it uses less digits than its factorization.

2940421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2940421 is about 1714.7655816467. The cubic root of 2940421 is about 143.2638128098.

The spelling of 2940421 in words is "two million, nine hundred forty thousand, four hundred twenty-one".