400680383 has 2 divisors, whose sum is σ = 400680384. Its totient is φ = 400680382.

The previous prime is 400680323. The next prime is 400680451. The reversal of 400680383 is 383086004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400680383 - 2¹⁴ = 400663999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400680323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200340191 + 200340192.

It is an arithmetic number, because the mean of its divisors is an integer number (200340192).

Almost surely, 2^400680383 is an apocalyptic number.

400680383 is a deficient number, since it is larger than the sum of its proper divisors (1).

400680383 is an equidigital number, since it uses as much as digits as its factorization.

400680383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 400680383 is about 20017.0023480041. The cubic root of 400680383 is about 737.2238218222.

The spelling of 400680383 in words is "four hundred million, six hundred eighty thousand, three hundred eighty-three".