456642377 has 4 divisors (see below), whose sum is σ = 456811716. Its totient is φ = 456473040.

The previous prime is 456642353. The next prime is 456642397. The reversal of 456642377 is 773246654.

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 262569616 + 194072761 = 16204^2 + 13931^2 .

It is a cyclic number.

It is not a de Polignac number, because 456642377 - 2⁶ = 456642313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (456642337) 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, 80558 + ... + 86039.

It is an arithmetic number, because the mean of its divisors is an integer number (114202929).

Almost surely, 2^456642377 is an apocalyptic number.

It is an amenable number.

456642377 is a deficient number, since it is larger than the sum of its proper divisors (169339).

456642377 is a wasteful number, since it uses less digits than its factorization.

456642377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169338.

The product of its digits is 846720, while the sum is 44.

The square root of 456642377 is about 21369.1922402322. The cubic root of 456642377 is about 770.0614877530.

The spelling of 456642377 in words is "four hundred fifty-six million, six hundred forty-two thousand, three hundred seventy-seven".