464128856 has 32 divisors (see below), whose sum is σ = 892972080. Its totient is φ = 226022400.

The previous prime is 464128853. The next prime is 464128879. The reversal of 464128856 is 658821464.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464128853) 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, 357200 + ... + 358496.

Almost surely, 2^464128856 is an apocalyptic number.

It is an amenable number.

464128856 is a deficient number, since it is larger than the sum of its proper divisors (428843224).

464128856 is a wasteful number, since it uses less digits than its factorization.

464128856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435 (or 2431 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The square root of 464128856 is about 21543.6500157239. The cubic root of 464128856 is about 774.2469861019.

The spelling of 464128856 in words is "four hundred sixty-four million, one hundred twenty-eight thousand, eight hundred fifty-six".