463989278 has 16 divisors (see below), whose sum is σ = 709560000. Its totient is φ = 227509152.

The previous prime is 463989277. The next prime is 463989283. The reversal of 463989278 is 872989364.

It is a happy number.

It is a super-2 number, since 2×463989278² = 430572100197922568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (463989277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13688 + ... + 33396.

It is an arithmetic number, because the mean of its divisors is an integer number (44347500).

Almost surely, 2^463989278 is an apocalyptic number.

463989278 is a deficient number, since it is larger than the sum of its proper divisors (245570722).

463989278 is a wasteful number, since it uses less digits than its factorization.

463989278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19939.

The product of its digits is 5225472, while the sum is 56.

The square root of 463989278 is about 21540.4103489233. The cubic root of 463989278 is about 774.1693649274.

The spelling of 463989278 in words is "four hundred sixty-three million, nine hundred eighty-nine thousand, two hundred seventy-eight".