400720295 has 8 divisors (see below), whose sum is σ = 480979296. Its totient is φ = 320499616.

The previous prime is 400720273. The next prime is 400720301. The reversal of 400720295 is 592027004.

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 400720295 - 2¹⁴ = 400703911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24374 + ... + 37356.

It is an arithmetic number, because the mean of its divisors is an integer number (60122412).

Almost surely, 2^400720295 is an apocalyptic number.

400720295 is a deficient number, since it is larger than the sum of its proper divisors (80259001).

400720295 is a wasteful number, since it uses less digits than its factorization.

400720295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19161.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 400720295 is about 20017.9992756519. Note that the first 3 decimals coincide. The cubic root of 400720295 is about 737.2482994371.

Adding to 400720295 its sum of digits (29), we get a square (400720324 = 20018²).

Adding to 400720295 its reverse (592027004), we get a palindrome (992747299).

The spelling of 400720295 in words is "four hundred million, seven hundred twenty thousand, two hundred ninety-five".