458685378 has 12 divisors (see below), whose sum is σ = 993818358. Its totient is φ = 152895120.

The previous prime is 458685377. The next prime is 458685401. The reversal of 458685378 is 873586854.

458685378 is a `hidden beast` number, since 4 + 586 + 8 + 53 + 7 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 417507489 + 41177889 = 20433^2 + 6417^2 .

It is not an unprimeable number, because it can be changed into a prime (458685377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12741243 + ... + 12741278.

Almost surely, 2^458685378 is an apocalyptic number.

458685378 is an abundant number, since it is smaller than the sum of its proper divisors (535132980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

458685378 is a wasteful number, since it uses less digits than its factorization.

458685378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25482529 (or 25482526 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The square root of 458685378 is about 21416.9413782641. The cubic root of 458685378 is about 771.2081881635.

The spelling of 458685378 in words is "four hundred fifty-eight million, six hundred eighty-five thousand, three hundred seventy-eight".