2104508406 has 128 divisors (see below), whose sum is σ = 5748019200. Its totient is φ = 495941760.

The previous prime is 2104508389. The next prime is 2104508423. The reversal of 2104508406 is 6048054012.

It is an interprime number because it is at equal distance from previous prime (2104508389) and next prime (2104508423).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 351385 + ... + 357323.

It is an arithmetic number, because the mean of its divisors is an integer number (44906400).

Almost surely, 2^2104508406 is an apocalyptic number.

2104508406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2104508406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2874009600).

2104508406 is an abundant number, since it is smaller than the sum of its proper divisors (3643510794).

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

2104508406 is a wasteful number, since it uses less digits than its factorization.

2104508406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6034.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 2104508406 is about 45874.9213187336. The cubic root of 2104508406 is about 1281.4949180307.

The spelling of 2104508406 in words is "two billion, one hundred four million, five hundred eight thousand, four hundred six".