400220675 has 24 divisors (see below), whose sum is σ = 516755616. Its totient is φ = 307203840.

The previous prime is 400220671. The next prime is 400220683. The reversal of 400220675 is 576022004.

It is not a de Polignac number, because 400220675 - 2² = 400220671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400220671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64562 + ... + 70488.

It is an arithmetic number, because the mean of its divisors is an integer number (21531484).

Almost surely, 2^400220675 is an apocalyptic number.

400220675 is a deficient number, since it is larger than the sum of its proper divisors (116534941).

400220675 is a wasteful number, since it uses less digits than its factorization.

400220675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6047 (or 6042 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 400220675 is about 20005.5161143121. The cubic root of 400220675 is about 736.9417704271.

Adding to 400220675 its reverse (576022004), we get a palindrome (976242679).

The spelling of 400220675 in words is "four hundred million, two hundred twenty thousand, six hundred seventy-five".