100400307 has 8 divisors (see below), whose sum is σ = 152990976. Its totient is φ = 57371592.

The previous prime is 100400273. The next prime is 100400323. The reversal of 100400307 is 703004001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100400307 - 2¹² = 100396211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100400357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2390463 + ... + 2390504.

It is an arithmetic number, because the mean of its divisors is an integer number (19123872).

Almost surely, 2^100400307 is an apocalyptic number.

100400307 is a deficient number, since it is larger than the sum of its proper divisors (52590669).

100400307 is an equidigital number, since it uses as much as digits as its factorization.

100400307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780977.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 100400307 is about 10019.9953592804. The cubic root of 100400307 is about 464.7774122563. Note that the first 3 decimals are identical.

Adding to 100400307 its reverse (703004001), we get a palindrome (803404308).

The spelling of 100400307 in words is "one hundred million, four hundred thousand, three hundred seven".