2421906 has 32 divisors (see below), whose sum is σ = 5184000. Its totient is φ = 752640.

The previous prime is 2421901. The next prime is 2421907. The reversal of 2421906 is 6091242.

2421906 is nontrivially palindromic in base 5.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (2421901) 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, 5170 + ... + 5618.

It is an arithmetic number, because the mean of its divisors is an integer number (162000).

2^2421906 is an apocalyptic number.

2421906 is an abundant number, since it is smaller than the sum of its proper divisors (2762094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2421906 is a wasteful number, since it uses less digits than its factorization.

2421906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2421906 is about 1556.2474096364. The cubic root of 2421906 is about 134.2927068509.

The spelling of 2421906 in words is "two million, four hundred twenty-one thousand, nine hundred six".