100313442 has 48 divisors (see below), whose sum is σ = 227784960. Its totient is φ = 31844736.

The previous prime is 100313431. The next prime is 100313459. The reversal of 100313442 is 244313001.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139159 + ... + 139877.

It is an arithmetic number, because the mean of its divisors is an integer number (4745520).

Almost surely, 2^100313442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100313442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113892480).

100313442 is an abundant number, since it is smaller than the sum of its proper divisors (127471518).

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

100313442 is a wasteful number, since it uses less digits than its factorization.

100313442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087 (or 1084 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 100313442 is about 10015.6598384730. The cubic root of 100313442 is about 464.6433338519.

Adding to 100313442 its reverse (244313001), we get a palindrome (344626443).

The spelling of 100313442 in words is "one hundred million, three hundred thirteen thousand, four hundred forty-two".