400100107 has 4 divisors (see below), whose sum is σ = 436472856. Its totient is φ = 363727360.

The previous prime is 400100033. The next prime is 400100171. The reversal of 400100107 is 701001004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400100107 - 2¹⁹ = 399575819 is a prime.

It is a super-2 number, since 2×400100107² = 320160191242822898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400100177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18186358 + ... + 18186379.

It is an arithmetic number, because the mean of its divisors is an integer number (109118214).

Almost surely, 2^400100107 is an apocalyptic number.

400100107 is a deficient number, since it is larger than the sum of its proper divisors (36372749).

400100107 is a wasteful number, since it uses less digits than its factorization.

400100107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36372748.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 400100107 is about 20002.5025184350. The cubic root of 400100107 is about 736.8677608247.

The spelling of 400100107 in words is "four hundred million, one hundred thousand, one hundred seven".