100400070 has 16 divisors (see below), whose sum is σ = 240960240. Its totient is φ = 26773344.

The previous prime is 100400063. The next prime is 100400107. The reversal of 100400070 is 70004001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1673305 + ... + 1673364.

It is an arithmetic number, because the mean of its divisors is an integer number (15060015).

Almost surely, 2^100400070 is an apocalyptic number.

100400070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100400070 is an abundant number, since it is smaller than the sum of its proper divisors (140560170).

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

100400070 is a wasteful number, since it uses less digits than its factorization.

100400070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3346679.

The product of its (nonzero) digits is 28, while the sum is 12.

The square root of 100400070 is about 10019.9835329206. The cubic root of 100400070 is about 464.7770465458. Note that the first 3 decimals are identical.

Adding to 100400070 its reverse (70004001), we get a palindrome (170404071).

The spelling of 100400070 in words is "one hundred million, four hundred thousand, seventy".