100428620 has 24 divisors (see below), whose sum is σ = 214477200. Its totient is φ = 39490112.

The previous prime is 100428599. The next prime is 100428641. The reversal of 100428620 is 26824001.

It is an interprime number because it is at equal distance from previous prime (100428599) and next prime (100428641).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41375 + ... + 43734.

It is an arithmetic number, because the mean of its divisors is an integer number (8936550).

Almost surely, 2^100428620 is an apocalyptic number.

100428620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100428620 is an abundant number, since it is smaller than the sum of its proper divisors (114048580).

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

100428620 is a wasteful number, since it uses less digits than its factorization.

100428620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85177 (or 85175 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 100428620 is about 10021.4080846955. The cubic root of 100428620 is about 464.8210974019.

The spelling of 100428620 in words is "one hundred million, four hundred twenty-eight thousand, six hundred twenty".