100220340 has 48 divisors (see below), whose sum is σ = 306129600. Its totient is φ = 24295680.

The previous prime is 100220327. The next prime is 100220347. The reversal of 100220340 is 43022001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220347) 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 15 ways as a sum of consecutive naturals, for example, 75265 + ... + 76584.

It is an arithmetic number, because the mean of its divisors is an integer number (6377700).

Almost surely, 2^100220340 is an apocalyptic number.

100220340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100220340 is an abundant number, since it is smaller than the sum of its proper divisors (205909260).

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

100220340 is a wasteful number, since it uses less digits than its factorization.

100220340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151872 (or 151870 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 100220340 is about 10011.0109379623. The cubic root of 100220340 is about 464.4995425087.

Adding to 100220340 its reverse (43022001), we get a palindrome (143242341).

The spelling of 100220340 in words is "one hundred million, two hundred twenty thousand, three hundred forty".