400422572 has 12 divisors (see below), whose sum is σ = 764443176. Its totient is φ = 182010240.

The previous prime is 400422553. The next prime is 400422577. The reversal of 400422572 is 275224004.

It is not an unprimeable number, because it can be changed into a prime (400422577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4550213 + ... + 4550300.

It is an arithmetic number, because the mean of its divisors is an integer number (63703598).

Almost surely, 2^400422572 is an apocalyptic number.

It is an amenable number.

400422572 is a deficient number, since it is larger than the sum of its proper divisors (364020604).

400422572 is a wasteful number, since it uses less digits than its factorization.

400422572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9100528 (or 9100526 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 400422572 is about 20010.5615113619. The cubic root of 400422572 is about 737.0656698405.

Adding to 400422572 its reverse (275224004), we get a palindrome (675646576).

The spelling of 400422572 in words is "four hundred million, four hundred twenty-two thousand, five hundred seventy-two".