100428156 has 36 divisors (see below), whose sum is σ = 254191392. Its totient is φ = 33432384.

The previous prime is 100428121. The next prime is 100428169. The reversal of 100428156 is 651824001.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 38221 + ... + 40763.

It is an arithmetic number, because the mean of its divisors is an integer number (7060872).

Almost surely, 2^100428156 is an apocalyptic number.

It is an amenable number.

100428156 is an abundant number, since it is smaller than the sum of its proper divisors (153763236).

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

100428156 is a wasteful number, since it uses less digits than its factorization.

100428156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3650 (or 3645 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 100428156 is about 10021.3849342294. The cubic root of 100428156 is about 464.8203815458.

The spelling of 100428156 in words is "one hundred million, four hundred twenty-eight thousand, one hundred fifty-six".