456921445 has 4 divisors (see below), whose sum is σ = 548305740. Its totient is φ = 365537152.

The previous prime is 456921407. The next prime is 456921449. The reversal of 456921445 is 544129654.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115928289 + 340993156 = 10767^2 + 18466^2 .

It is a cyclic number.

It is not a de Polignac number, because 456921445 - 2⁷ = 456921317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 456921398 and 456921407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (456921449) 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, 45692140 + ... + 45692149.

It is an arithmetic number, because the mean of its divisors is an integer number (137076435).

Almost surely, 2^456921445 is an apocalyptic number.

It is an amenable number.

456921445 is a deficient number, since it is larger than the sum of its proper divisors (91384295).

456921445 is an equidigital number, since it uses as much as digits as its factorization.

456921445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91384294.

The product of its digits is 172800, while the sum is 40.

The square root of 456921445 is about 21375.7209235151. The cubic root of 456921445 is about 770.2183251147.

The spelling of 456921445 in words is "four hundred fifty-six million, nine hundred twenty-one thousand, four hundred forty-five".