558243840 has 448 divisors, whose sum is σ = 2264785920. Its totient is φ = 114032640.

The previous prime is 558243821. The next prime is 558243869. The reversal of 558243840 is 48342855.

It is a tau number, because it is divible by the number of its divisors (448).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9461731 + ... + 9461789.

Almost surely, 2^558243840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 558243840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1132392960).

558243840 is an abundant number, since it is smaller than the sum of its proper divisors (1706542080).

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

558243840 is a wasteful number, since it uses less digits than its factorization.

558243840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 39.

The square root of 558243840 is about 23627.1843434634. The cubic root of 558243840 is about 823.3945343256.

The spelling of 558243840 in words is "five hundred fifty-eight million, two hundred forty-three thousand, eight hundred forty".