5385012840 has 80 divisors (see below), whose sum is σ = 18099637380. Its totient is φ = 1436002560.

The previous prime is 5385012823. The next prime is 5385012847. The reversal of 5385012840 is 482105835.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5078272644 + 306740196 = 71262^2 + 17514^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5385012795 and 5385012804.

It is not an unprimeable number, because it can be changed into a prime (5385012847) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 827781 + ... + 834260.

Almost surely, 2^5385012840 is an apocalyptic number.

It is an amenable number.

5385012840 is an abundant number, since it is smaller than the sum of its proper divisors (12714624540).

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

5385012840 is a wasteful number, since it uses less digits than its factorization.

5385012840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662064 (or 1662051 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 5385012840 is about 73382.6467225052. The cubic root of 5385012840 is about 1752.7860752917.

The spelling of 5385012840 in words is "five billion, three hundred eighty-five million, twelve thousand, eight hundred forty".