2043405 has 48 divisors (see below), whose sum is σ = 4368000. Its totient is φ = 860544.

The previous prime is 2043401. The next prime is 2043409. The reversal of 2043405 is 5043402.

2043405 = 12³ + 13³ + ... + 53³.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2043401) and next prime (2043409).

It is not a de Polignac number, because 2043405 - 2² = 2043401 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3846 + ... + 4344.

It is an arithmetic number, because the mean of its divisors is an integer number (91000).

2^2043405 is an apocalyptic number.

It is an amenable number.

2043405 is an abundant number, since it is smaller than the sum of its proper divisors (2324595).

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

2043405 is a wasteful number, since it uses less digits than its factorization.

2043405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 527 counting only the distinct ones).

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

The square root of 2043405 is about 1429.4771771525. The cubic root of 2043405 is about 126.8970376758.

Adding to 2043405 its reverse (5043402), we get a palindrome (7086807).

The spelling of 2043405 in words is "two million, forty-three thousand, four hundred five".