2053404 has 24 divisors (see below), whose sum is σ = 5323920. Its totient is φ = 684432.

The previous prime is 2053397. The next prime is 2053411. The reversal of 2053404 is 4043502.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2053397) and next prime (2053411).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9399 + ... + 9614.

It is an arithmetic number, because the mean of its divisors is an integer number (221830).

2^2053404 is an apocalyptic number.

It is an amenable number.

2053404 is an abundant number, since it is smaller than the sum of its proper divisors (3270516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2053404 is a wasteful number, since it uses less digits than its factorization.

2053404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19026 (or 19018 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2053404 is about 1432.9703416331. The cubic root of 2053404 is about 127.1036828711.

Adding to 2053404 its reverse (4043502), we get a palindrome (6096906).

The spelling of 2053404 in words is "two million, fifty-three thousand, four hundred four".