400272107 has 12 divisors (see below), whose sum is σ = 429630840. Its totient is φ = 372758112.

The previous prime is 400272097. The next prime is 400272139. The reversal of 400272107 is 701272004.

It is a de Polignac number, because none of the positive numbers 2^k-400272107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400272707) 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, 11903 + ... + 30695.

It is an arithmetic number, because the mean of its divisors is an integer number (35802570).

Almost surely, 2^400272107 is an apocalyptic number.

400272107 is a deficient number, since it is larger than the sum of its proper divisors (29358733).

400272107 is a wasteful number, since it uses less digits than its factorization.

400272107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18890 (or 18871 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 400272107 is about 20006.8015184837. The cubic root of 400272107 is about 736.9733369836.

The spelling of 400272107 in words is "four hundred million, two hundred seventy-two thousand, one hundred seven".