100255420 has 24 divisors (see below), whose sum is σ = 210725424. Its totient is φ = 40066176.

The previous prime is 100255399. The next prime is 100255423. The reversal of 100255420 is 24552001.

It is a super-2 number, since 2×100255420² = 20102298478752800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100255423) 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, 39304 + ... + 41776.

It is an arithmetic number, because the mean of its divisors is an integer number (8780226).

Almost surely, 2^100255420 is an apocalyptic number.

100255420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100255420 is an abundant number, since it is smaller than the sum of its proper divisors (110470004).

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

100255420 is a wasteful number, since it uses less digits than its factorization.

100255420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4509 (or 4507 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 100255420 is about 10012.7628554760. The cubic root of 100255420 is about 464.5537322508.

The spelling of 100255420 in words is "one hundred million, two hundred fifty-five thousand, four hundred twenty".