100452420 has 48 divisors (see below), whose sum is σ = 312520320. Its totient is φ = 26787168.

The previous prime is 100452409. The next prime is 100452427. The reversal of 100452420 is 24254001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 100452393 and 100452402.

It is not an unprimeable number, because it can be changed into a prime (100452427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92472 + ... + 93551.

It is an arithmetic number, because the mean of its divisors is an integer number (6510840).

Almost surely, 2^100452420 is an apocalyptic number.

100452420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100452420 is an abundant number, since it is smaller than the sum of its proper divisors (212067900).

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

100452420 is a wasteful number, since it uses less digits than its factorization.

100452420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186041 (or 186033 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 100452420 is about 10022.5954722317. The cubic root of 100452420 is about 464.8578129262.

The spelling of 100452420 in words is "one hundred million, four hundred fifty-two thousand, four hundred twenty".