472664278 has 8 divisors (see below), whose sum is σ = 710681760. Its totient is φ = 235770360.

The previous prime is 472664239. The next prime is 472664293. The reversal of 472664278 is 872466274.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×472664278² = 446823039394522568, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 279838 + ... + 281521.

It is an arithmetic number, because the mean of its divisors is an integer number (88835220).

Almost surely, 2^472664278 is an apocalyptic number.

472664278 is a deficient number, since it is larger than the sum of its proper divisors (238017482).

472664278 is a wasteful number, since it uses less digits than its factorization.

472664278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561782.

The product of its digits is 903168, while the sum is 46.

The square root of 472664278 is about 21740.8435438922. The cubic root of 472664278 is about 778.9643706964.

The spelling of 472664278 in words is "four hundred seventy-two million, six hundred sixty-four thousand, two hundred seventy-eight".