400411145 has 8 divisors (see below), whose sum is σ = 481077960. Its totient is φ = 319939200.

The previous prime is 400411139. The next prime is 400411153. The reversal of 400411145 is 541114004.

It can be written as a sum of positive squares in 4 ways, for example, as 45050944 + 355360201 = 6712^2 + 18851^2 .

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

It is not a de Polignac number, because 400411145 - 2⁴ = 400411129 is a prime.

It is a super-2 number, since 2×400411145² = 320658170080422050, which contains 22 as substring.

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, 44156 + ... + 52445.

It is an arithmetic number, because the mean of its divisors is an integer number (60134745).

Almost surely, 2^400411145 is an apocalyptic number.

It is an amenable number.

400411145 is a deficient number, since it is larger than the sum of its proper divisors (80666815).

400411145 is an equidigital number, since it uses as much as digits as its factorization.

400411145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97435.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 400411145 is about 20010.2759851033. The cubic root of 400411145 is about 737.0586584729.

Adding to 400411145 its reverse (541114004), we get a palindrome (941525149).

The spelling of 400411145 in words is "four hundred million, four hundred eleven thousand, one hundred forty-five".