100400069 has 12 divisors (see below), whose sum is σ = 127410048. Its totient is φ = 78233400.

The previous prime is 100400063. The next prime is 100400107. The reversal of 100400069 is 960004001.

It is not a de Polignac number, because 100400069 - 2⁸ = 100399813 is a prime.

It is a super-2 number, since 2×100400069² = 20160347710409522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100400069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100400063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92597 + ... + 93674.

It is an arithmetic number, because the mean of its divisors is an integer number (10617504).

Almost surely, 2^100400069 is an apocalyptic number.

It is an amenable number.

100400069 is a deficient number, since it is larger than the sum of its proper divisors (27009979).

100400069 is a wasteful number, since it uses less digits than its factorization.

100400069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186296 (or 186289 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 100400069 is about 10019.9834830203. The cubic root of 100400069 is about 464.7770450027. Note that the first 3 decimals are identical.

The spelling of 100400069 in words is "one hundred million, four hundred thousand, sixty-nine".