100840070 has 32 divisors (see below), whose sum is σ = 184384512. Its totient is φ = 39703552.

The previous prime is 100840067. The next prime is 100840097. The reversal of 100840070 is 70048001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263099 + ... + 263481.

It is an arithmetic number, because the mean of its divisors is an integer number (5762016).

Almost surely, 2^100840070 is an apocalyptic number.

100840070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100840070 is a deficient number, since it is larger than the sum of its proper divisors (83544442).

100840070 is a wasteful number, since it uses less digits than its factorization.

100840070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 100840070 is about 10041.9156538979. The cubic root of 100840070 is about 465.4550138180.

Adding to 100840070 its reverse (70048001), we get a palindrome (170888071).

The spelling of 100840070 in words is "one hundred million, eight hundred forty thousand, seventy".