100343880 has 256 divisors, whose sum is σ = 412070400. Its totient is φ = 21150720.

The previous prime is 100343863. The next prime is 100343891. The reversal of 100343880 is 88343001.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 97770 + ... + 98790.

It is an arithmetic number, because the mean of its divisors is an integer number (1609650).

Almost surely, 2^100343880 is an apocalyptic number.

100343880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100343880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206035200).

100343880 is an abundant number, since it is smaller than the sum of its proper divisors (311726520).

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

100343880 is a wasteful number, since it uses less digits than its factorization.

100343880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061 (or 1051 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 100343880 is about 10017.1792436793. The cubic root of 100343880 is about 464.6903245088.

Adding to 100343880 its reverse (88343001), we get a palindrome (188686881).

The spelling of 100343880 in words is "one hundred million, three hundred forty-three thousand, eight hundred eighty".