2421429 has 16 divisors (see below), whose sum is σ = 3467520. Its totient is φ = 1497600.

The previous prime is 2421421. The next prime is 2421439. The reversal of 2421429 is 9241242.

It is not a de Polignac number, because 2421429 - 2³ = 2421421 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2421399 and 2421408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3729 + ... + 4329.

It is an arithmetic number, because the mean of its divisors is an integer number (216720).

2^2421429 is an apocalyptic number.

It is an amenable number.

2421429 is a deficient number, since it is larger than the sum of its proper divisors (1046091).

2421429 is a wasteful number, since it uses less digits than its factorization.

2421429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700.

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

The square root of 2421429 is about 1556.0941488226. The cubic root of 2421429 is about 134.2838898521.

It can be divided in two parts, 2421 and 429, that added together give a triangular number (2850 = T₇₅).

The spelling of 2421429 in words is "two million, four hundred twenty-one thousand, four hundred twenty-nine".