5387389540 has 48 divisors (see below), whose sum is σ = 12254317488. Its totient is φ = 1977675264.

The previous prime is 5387389517. The next prime is 5387389543. The reversal of 5387389540 is 459837835.

It can be written as a sum of positive squares in 8 ways, for example, as 240188004 + 5147201536 = 15498^2 + 71744^2 .

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (5387389543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14907 + ... + 104866.

It is an arithmetic number, because the mean of its divisors is an integer number (255298281).

Almost surely, 2^5387389540 is an apocalyptic number.

It is an amenable number.

5387389540 is an abundant number, since it is smaller than the sum of its proper divisors (6866927948).

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

5387389540 is a wasteful number, since it uses less digits than its factorization.

5387389540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119968 (or 119966 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The square root of 5387389540 is about 73398.8388191530. The cubic root of 5387389540 is about 1753.0439040761.

The spelling of 5387389540 in words is "five billion, three hundred eighty-seven million, three hundred eighty-nine thousand, five hundred forty".