2421706 has 16 divisors (see below), whose sum is σ = 4253760. Its totient is φ = 1012320.

The previous prime is 2421673. The next prime is 2421707. The reversal of 2421706 is 6071242.

2421706 = T₃₂₃ + T₃₂₄ + ... + T₃₆₃.

It is not an unprimeable number, because it can be changed into a prime (2421707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1536 + ... + 2683.

It is an arithmetic number, because the mean of its divisors is an integer number (265860).

2^2421706 is an apocalyptic number.

2421706 is a deficient number, since it is larger than the sum of its proper divisors (1832054).

2421706 is a wasteful number, since it uses less digits than its factorization.

2421706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4269.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 2421706 is about 1556.1831511747. The cubic root of 2421706 is about 134.2890101370.

Adding to 2421706 its reverse (6071242), we get a palindrome (8492948).

The spelling of 2421706 in words is "two million, four hundred twenty-one thousand, seven hundred six".