2809054 has 4 divisors (see below), whose sum is σ = 4213584. Its totient is φ = 1404526.

The previous prime is 2809019. The next prime is 2809069. The reversal of 2809054 is 4509082.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4509082 = 2 ⋅2254541.

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, 702262 + ... + 702265.

It is an arithmetic number, because the mean of its divisors is an integer number (1053396).

2^2809054 is an apocalyptic number.

2809054 is a deficient number, since it is larger than the sum of its proper divisors (1404530).

2809054 is a wasteful number, since it uses less digits than its factorization.

2809054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404529.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2809054 is about 1676.0232695282. The cubic root of 2809054 is about 141.0977308127.

Adding to 2809054 its sum of digits (28), we get a palindrome (2809082).

The spelling of 2809054 in words is "two million, eight hundred nine thousand, fifty-four".