100443402 has 40 divisors (see below), whose sum is σ = 225640800. Its totient is φ = 33395976.

The previous prime is 100443397. The next prime is 100443407. The reversal of 100443402 is 204344001.

It is an interprime number because it is at equal distance from previous prime (100443397) and next prime (100443407).

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

It is not an unprimeable number, because it can be changed into a prime (100443407) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 119299 + ... + 120137.

It is an arithmetic number, because the mean of its divisors is an integer number (5641020).

Almost surely, 2^100443402 is an apocalyptic number.

100443402 is an abundant number, since it is smaller than the sum of its proper divisors (125197398).

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

100443402 is an equidigital number, since it uses as much as digits as its factorization.

100443402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592 (or 1583 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 100443402 is about 10022.1455786673. The cubic root of 100443402 is about 464.8439018188.

Adding to 100443402 its reverse (204344001), we get a palindrome (304787403).

The spelling of 100443402 in words is "one hundred million, four hundred forty-three thousand, four hundred two".