456398645 has 16 divisors (see below), whose sum is σ = 557599728. Its totient is φ = 358525440.

The previous prime is 456398617. The next prime is 456398653. The reversal of 456398645 is 546893654.

It can be written as a sum of positive squares in 8 ways, for example, as 239661361 + 216737284 = 15481^2 + 14722^2 .

It is not a de Polignac number, because 456398645 - 2⁸ = 456398389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 456398593 and 456398602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284987 + ... + 286583.

It is an arithmetic number, because the mean of its divisors is an integer number (34849983).

Almost surely, 2^456398645 is an apocalyptic number.

It is an amenable number.

456398645 is a deficient number, since it is larger than the sum of its proper divisors (101201083).

456398645 is a wasteful number, since it uses less digits than its factorization.

456398645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600.

The product of its digits is 3110400, while the sum is 50.

The square root of 456398645 is about 21363.4885962008. The cubic root of 456398645 is about 769.9244570854.

The spelling of 456398645 in words is "four hundred fifty-six million, three hundred ninety-eight thousand, six hundred forty-five".