3105645400 has 144 divisors (see below), whose sum is σ = 8530603560. Its totient is φ = 1042329600.

The previous prime is 3105645397. The next prime is 3105645407. The reversal of 3105645400 is 45465013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3105645407) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 367624 + ... + 375976.

Almost surely, 2^3105645400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3105645400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4265301780).

3105645400 is an abundant number, since it is smaller than the sum of its proper divisors (5424958160).

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

3105645400 is a wasteful number, since it uses less digits than its factorization.

3105645400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8406 (or 8384 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 3105645400 is about 55728.3177567742. The cubic root of 3105645400 is about 1458.9843126523.

The spelling of 3105645400 in words is "three billion, one hundred five million, six hundred forty-five thousand, four hundred".