548638890 has 32 divisors (see below), whose sum is σ = 1317461760. Its totient is φ = 146222784.

The previous prime is 548638877. The next prime is 548638891. The reversal of 548638890 is 98836845.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (548638891) 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, 66831 + ... + 74589.

It is an arithmetic number, because the mean of its divisors is an integer number (41170680).

Almost surely, 2^548638890 is an apocalyptic number.

548638890 is an abundant number, since it is smaller than the sum of its proper divisors (768822870).

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

548638890 is a wasteful number, since it uses less digits than its factorization.

548638890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10126.

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 548638890 is about 23423.0418605270. The cubic root of 548638890 is about 818.6448417669.

The spelling of 548638890 in words is "five hundred forty-eight million, six hundred thirty-eight thousand, eight hundred ninety".