400127875 has 24 divisors (see below), whose sum is σ = 580896576. Its totient is φ = 274369200.

The previous prime is 400127869. The next prime is 400127887. The reversal of 400127875 is 578721004.

It is a happy number.

It is not a de Polignac number, because 400127875 - 2⁵ = 400127843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400127875.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26539 + ... + 38788.

It is an arithmetic number, because the mean of its divisors is an integer number (24204024).

Almost surely, 2^400127875 is an apocalyptic number.

400127875 is a deficient number, since it is larger than the sum of its proper divisors (180768701).

400127875 is an equidigital number, since it uses as much as digits as its factorization.

400127875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65356 (or 65339 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 400127875 is about 20003.1966195406. The cubic root of 400127875 is about 736.8848072840.

Adding to 400127875 its reverse (578721004), we get a palindrome (978848879).

The spelling of 400127875 in words is "four hundred million, one hundred twenty-seven thousand, eight hundred seventy-five".