5538390740 has 24 divisors (see below), whose sum is σ = 11639985000. Its totient is φ = 2213572608.

The previous prime is 5538390733. The next prime is 5538390743. The reversal of 5538390740 is 470938355.

It can be written as a sum of positive squares in 4 ways, for example, as 647906116 + 4890484624 = 25454^2 + 69932^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5538390691 and 5538390700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5538390743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85877 + ... + 135836.

It is an arithmetic number, because the mean of its divisors is an integer number (484999375).

Almost surely, 2^5538390740 is an apocalyptic number.

It is an amenable number.

5538390740 is an abundant number, since it is smaller than the sum of its proper divisors (6101594260).

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

5538390740 is a wasteful number, since it uses less digits than its factorization.

5538390740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222971 (or 222969 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 5538390740 is about 74420.3650891340. The cubic root of 5538390740 is about 1769.2716996871.

The spelling of 5538390740 in words is "five billion, five hundred thirty-eight million, three hundred ninety thousand, seven hundred forty".