400227723 has 80 divisors (see below), whose sum is σ = 728555520. Its totient is φ = 213871104.

The previous prime is 400227679. The next prime is 400227733. The reversal of 400227723 is 327722004.

It is not a de Polignac number, because 400227723 - 2⁹ = 400227211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (400227733) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1044790 + ... + 1045172.

It is an arithmetic number, because the mean of its divisors is an integer number (9106944).

Almost surely, 2^400227723 is an apocalyptic number.

400227723 is a deficient number, since it is larger than the sum of its proper divisors (328327797).

400227723 is a wasteful number, since it uses less digits than its factorization.

400227723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 400227723 is about 20005.6922649530. The cubic root of 400227723 is about 736.9460963198.

Adding to 400227723 its reverse (327722004), we get a palindrome (727949727).

The spelling of 400227723 in words is "four hundred million, two hundred twenty-seven thousand, seven hundred twenty-three".