5408661920 has 24 divisors (see below), whose sum is σ = 12777964164. Its totient is φ = 2163464704.

The previous prime is 5408661917. The next prime is 5408661949. The reversal of 5408661920 is 291668045.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4668168976 + 740492944 = 68324^2 + 27212^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16901909 + ... + 16902228.

Almost surely, 2^5408661920 is an apocalyptic number.

It is an amenable number.

5408661920 is an abundant number, since it is smaller than the sum of its proper divisors (7369302244).

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

5408661920 is a wasteful number, since it uses less digits than its factorization.

5408661920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33804152 (or 33804144 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 5408661920 is about 73543.6055683973. The cubic root of 5408661920 is about 1755.3482013520.

The spelling of 5408661920 in words is "five billion, four hundred eight million, six hundred sixty-one thousand, nine hundred twenty".