2154808 has 8 divisors (see below), whose sum is σ = 4040280. Its totient is φ = 1077400.

The previous prime is 2154793. The next prime is 2154811. The reversal of 2154808 is 8084512.

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

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

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, 134668 + ... + 134683.

It is an arithmetic number, because the mean of its divisors is an integer number (505035).

2^2154808 is an apocalyptic number.

It is an amenable number.

2154808 is a deficient number, since it is larger than the sum of its proper divisors (1885472).

2154808 is a wasteful number, since it uses less digits than its factorization.

2154808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269357 (or 269353 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 2154808 is about 1467.9264286741. The cubic root of 2154808 is about 129.1624258522.

The spelling of 2154808 in words is "two million, one hundred fifty-four thousand, eight hundred eight".