2164408 has 8 divisors (see below), whose sum is σ = 4058280. Its totient is φ = 1082200.

The previous prime is 2164399. The next prime is 2164417. The reversal of 2164408 is 8044612.

It is an interprime number because it is at equal distance from previous prime (2164399) and next prime (2164417).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135268 + ... + 135283.

It is an arithmetic number, because the mean of its divisors is an integer number (507285).

2^2164408 is an apocalyptic number.

It is an amenable number.

2164408 is a deficient number, since it is larger than the sum of its proper divisors (1893872).

2164408 is a wasteful number, since it uses less digits than its factorization.

2164408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270557 (or 270553 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 2164408 is about 1471.1927134132. The cubic root of 2164408 is about 129.3539545065.

It can be divided in two parts, 216 and 4408, that added together give a square (4624 = 68²).

The spelling of 2164408 in words is "two million, one hundred sixty-four thousand, four hundred eight".