457377478 has 4 divisors (see below), whose sum is σ = 686066220. Its totient is φ = 228688738.

The previous prime is 457377463. The next prime is 457377491. The reversal of 457377478 is 874773754.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 874773754 = 2 ⋅437386877.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114344368 + ... + 114344371.

It is an arithmetic number, because the mean of its divisors is an integer number (171516555).

Almost surely, 2^457377478 is an apocalyptic number.

457377478 is a deficient number, since it is larger than the sum of its proper divisors (228688742).

457377478 is a wasteful number, since it uses less digits than its factorization.

457377478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228688741.

The product of its digits is 4609920, while the sum is 52.

The square root of 457377478 is about 21386.3853420815. The cubic root of 457377478 is about 770.4744801482.

The spelling of 457377478 in words is "four hundred fifty-seven million, three hundred seventy-seven thousand, four hundred seventy-eight".