5645730838 has 32 divisors (see below), whose sum is σ = 10009422720. Its totient is φ = 2359109760.

The previous prime is 5645730767. The next prime is 5645730859. The reversal of 5645730838 is 8380375465.

It is a junction number, because it is equal to n+sod(n) for n = 5645730791 and 5645730800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159448 + ... + 191611.

It is an arithmetic number, because the mean of its divisors is an integer number (312794460).

Almost surely, 2^5645730838 is an apocalyptic number.

5645730838 is a deficient number, since it is larger than the sum of its proper divisors (4363691882).

5645730838 is a wasteful number, since it uses less digits than its factorization.

5645730838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351132.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The square root of 5645730838 is about 75138.0784822183. The cubic root of 5645730838 is about 1780.6287849254.

The spelling of 5645730838 in words is "five billion, six hundred forty-five million, seven hundred thirty thousand, eight hundred thirty-eight".