5406939720 has 192 divisors, whose sum is σ = 21627889920. Its totient is φ = 1140797952.

The previous prime is 5406939689. The next prime is 5406939721. The reversal of 5406939720 is 279396045.

It is a happy number.

5406939720 is a `hidden beast` number, since 540 + 6 + 9 + 39 + 72 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (5406939721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49764 + ... + 115283.

It is an arithmetic number, because the mean of its divisors is an integer number (112645260).

Almost surely, 2^5406939720 is an apocalyptic number.

It is an amenable number.

5406939720 is an abundant number, since it is smaller than the sum of its proper divisors (16220950200).

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

5406939720 is a wasteful number, since it uses less digits than its factorization.

5406939720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165084 (or 165077 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 5406939720 is about 73531.8959363894. The cubic root of 5406939720 is about 1755.1618717424.

The spelling of 5406939720 in words is "five billion, four hundred six million, nine hundred thirty-nine thousand, seven hundred twenty".