400798273 has 8 divisors (see below), whose sum is σ = 426532392. Its totient is φ = 375303936.

The previous prime is 400798271. The next prime is 400798283. The reversal of 400798273 is 372897004.

It can be written as a sum of positive squares in 4 ways, for example, as 177235969 + 223562304 = 13313^2 + 14952^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 400798273 - 2¹ = 400798271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400798271) 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, 56490 + ... + 63187.

It is an arithmetic number, because the mean of its divisors is an integer number (53316549).

Almost surely, 2^400798273 is an apocalyptic number.

It is an amenable number.

400798273 is a deficient number, since it is larger than the sum of its proper divisors (25734119).

400798273 is a wasteful number, since it uses less digits than its factorization.

400798273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119891.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 400798273 is about 20019.9468780514. The cubic root of 400798273 is about 737.2961178447.

The spelling of 400798273 in words is "four hundred million, seven hundred ninety-eight thousand, two hundred seventy-three".