100420548 has 24 divisors (see below), whose sum is σ = 246647520. Its totient is φ = 31711680.

The previous prime is 100420519. The next prime is 100420549. The reversal of 100420548 is 845024001.

It is not an unprimeable number, because it can be changed into a prime (100420549) 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, 219993 + ... + 220448.

It is an arithmetic number, because the mean of its divisors is an integer number (10276980).

Almost surely, 2^100420548 is an apocalyptic number.

It is an amenable number.

100420548 is an abundant number, since it is smaller than the sum of its proper divisors (146226972).

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

100420548 is a wasteful number, since it uses less digits than its factorization.

100420548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440467 (or 440465 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 100420548 is about 10021.0053387871. The cubic root of 100420548 is about 464.8086436597.

Adding to 100420548 its reverse (845024001), we get a palindrome (945444549).

The spelling of 100420548 in words is "one hundred million, four hundred twenty thousand, five hundred forty-eight".