100440670 has 32 divisors (see below), whose sum is σ = 198567936. Its totient is φ = 36276000.

The previous prime is 100440667. The next prime is 100440677. The reversal of 100440670 is 76044001.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100440677) 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, 13587 + ... + 19633.

It is an arithmetic number, because the mean of its divisors is an integer number (6205248).

Almost surely, 2^100440670 is an apocalyptic number.

100440670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100440670 is a deficient number, since it is larger than the sum of its proper divisors (98127266).

100440670 is a wasteful number, since it uses less digits than its factorization.

100440670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6216.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 100440670 is about 10022.0092795806. The cubic root of 100440670 is about 464.8396872893.

Adding to 100440670 its reverse (76044001), we get a palindrome (176484671).

The spelling of 100440670 in words is "one hundred million, four hundred forty thousand, six hundred seventy".