100440016 has 10 divisors (see below), whose sum is σ = 194602562. Its totient is φ = 50220000.

The previous prime is 100440013. The next prime is 100440017. The reversal of 100440016 is 610044001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 100080016 + 360000 = 10004^2 + 600^2 .

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 6277501 = 100440016 / (1 + 0 + 0 + 4 + 4 + 0 + 0 + 1 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100440013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3138735 + ... + 3138766.

Almost surely, 2^100440016 is an apocalyptic number.

100440016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

100440016 is a deficient number, since it is larger than the sum of its proper divisors (94162546).

100440016 is an equidigital number, since it uses as much as digits as its factorization.

100440016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6277509 (or 6277503 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 100440016 is about 10021.9766513398. The cubic root of 100440016 is about 464.8386783825.

Adding to 100440016 its reverse (610044001), we get a palindrome (710484017).

The spelling of 100440016 in words is "one hundred million, four hundred forty thousand, sixteen".