5439493800 has 144 divisors (see below), whose sum is σ = 19672920540. Its totient is φ = 1338946560.

The previous prime is 5439493799. The next prime is 5439493841. The reversal of 5439493800 is 83949345.

It is a happy number.

5439493800 is a `hidden beast` number, since 54 + 39 + 493 + 80 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 1562937156 + 3876556644 = 39534^2 + 62262^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 92829 + ... + 139628.

Almost surely, 2^5439493800 is an apocalyptic number.

5439493800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5439493800 is an abundant number, since it is smaller than the sum of its proper divisors (14233426740).

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

5439493800 is a wasteful number, since it uses less digits than its factorization.

5439493800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232492 (or 232480 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 5439493800 is about 73752.9240098316. The cubic root of 5439493800 is about 1758.6773163089.

The spelling of 5439493800 in words is "five billion, four hundred thirty-nine million, four hundred ninety-three thousand, eight hundred".