10220456 has 8 divisors (see below), whose sum is σ = 19163370. Its totient is φ = 5110224.

The previous prime is 10220449. The next prime is 10220459. The reversal of 10220456 is 65402201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5597956 + 4622500 = 2366^2 + 2150^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (10220459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638771 + ... + 638786.

Almost surely, 2^10220456 is an apocalyptic number.

It is an amenable number.

10220456 is a deficient number, since it is larger than the sum of its proper divisors (8942914).

10220456 is a wasteful number, since it uses less digits than its factorization.

10220456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277563 (or 1277559 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 10220456 is about 3196.9447915158. The cubic root of 10220456 is about 217.0151687953.

Adding to 10220456 its reverse (65402201), we get a palindrome (75622657).

The spelling of 10220456 in words is "ten million, two hundred twenty thousand, four hundred fifty-six".