470278457 has 4 divisors (see below), whose sum is σ = 513031056. Its totient is φ = 427525860.

The previous prime is 470278451. The next prime is 470278469. The reversal of 470278457 is 754872074.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 470278457 - 2⁸ = 470278201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (470278451) 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, 21376283 + ... + 21376304.

It is an arithmetic number, because the mean of its divisors is an integer number (128257764).

Almost surely, 2^470278457 is an apocalyptic number.

It is an amenable number.

470278457 is a deficient number, since it is larger than the sum of its proper divisors (42752599).

470278457 is a wasteful number, since it uses less digits than its factorization.

470278457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42752598.

The product of its (nonzero) digits is 439040, while the sum is 44.

The square root of 470278457 is about 21685.9045695585. The cubic root of 470278457 is about 777.6515253523.

The spelling of 470278457 in words is "four hundred seventy million, two hundred seventy-eight thousand, four hundred fifty-seven".