100478634 has 16 divisors (see below), whose sum is σ = 201603072. Its totient is φ = 33385248.

The previous prime is 100478633. The next prime is 100478681. The reversal of 100478634 is 436874001.

It is a junction number, because it is equal to n+sod(n) for n = 100478595 and 100478604.

It is not an unprimeable number, because it can be changed into a prime (100478633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24874 + ... + 28629.

It is an arithmetic number, because the mean of its divisors is an integer number (12600192).

Almost surely, 2^100478634 is an apocalyptic number.

100478634 is an abundant number, since it is smaller than the sum of its proper divisors (101124438).

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

100478634 is a wasteful number, since it uses less digits than its factorization.

100478634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53821.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 100478634 is about 10023.9031320140. The cubic root of 100478634 is about 464.8982457430.

It can be divided in two parts, 10047 and 8634, that added together give a palindrome (18681).

The spelling of 100478634 in words is "one hundred million, four hundred seventy-eight thousand, six hundred thirty-four".