400740316 has 12 divisors (see below), whose sum is σ = 731786832. Its totient is φ = 191658368.

The previous prime is 400740313. The next prime is 400740407. The reversal of 400740316 is 613047004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400740313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2177845 + ... + 2178028.

It is an arithmetic number, because the mean of its divisors is an integer number (60982236).

Almost surely, 2^400740316 is an apocalyptic number.

400740316 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

400740316 is a deficient number, since it is larger than the sum of its proper divisors (331046516).

400740316 is a wasteful number, since it uses less digits than its factorization.

400740316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4355900 (or 4355898 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 400740316 is about 20018.4993443565. The cubic root of 400740316 is about 737.2605774961.

The spelling of 400740316 in words is "four hundred million, seven hundred forty thousand, three hundred sixteen".