2123416 has 8 divisors (see below), whose sum is σ = 3981420. Its totient is φ = 1061704.

The previous prime is 2123411. The next prime is 2123423. The reversal of 2123416 is 6143212.

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2123393 and 2123402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132706 + ... + 132721.

2^2123416 is an apocalyptic number.

It is an amenable number.

2123416 is a deficient number, since it is larger than the sum of its proper divisors (1858004).

2123416 is a wasteful number, since it uses less digits than its factorization.

2123416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265433 (or 265429 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 2123416 is about 1457.1945649089. The cubic root of 2123416 is about 128.5321271999.

Adding to 2123416 its reverse (6143212), we get a palindrome (8266628).

The spelling of 2123416 in words is "two million, one hundred twenty-three thousand, four hundred sixteen".