2429421 has 16 divisors (see below), whose sum is σ = 3417984. Its totient is φ = 1531904.

The previous prime is 2429411. The next prime is 2429437. The reversal of 2429421 is 1249242.

2429421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2429421 - 2⁷ = 2429293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2429391 and 2429400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2429411) 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 15 ways as a sum of consecutive naturals, for example, 9325 + ... + 9581.

It is an arithmetic number, because the mean of its divisors is an integer number (213624).

2^2429421 is an apocalyptic number.

It is an amenable number.

2429421 is a deficient number, since it is larger than the sum of its proper divisors (988563).

2429421 is a wasteful number, since it uses less digits than its factorization.

2429421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420.

The product of its digits is 1152, while the sum is 24.

The square root of 2429421 is about 1558.6600014115. The cubic root of 2429421 is about 134.4314636335.

It can be divided in two parts, 2429 and 421, that added together give a triangular number (2850 = T₇₅).

The spelling of 2429421 in words is "two million, four hundred twenty-nine thousand, four hundred twenty-one".