461933978 has 32 divisors (see below), whose sum is σ = 790445952. Its totient is φ = 200411200.

The previous prime is 461933977. The next prime is 461933987. The reversal of 461933978 is 879339164.

It is not an unprimeable number, because it can be changed into a prime (461933971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390548 + ... + 391728.

It is an arithmetic number, because the mean of its divisors is an integer number (24701436).

Almost surely, 2^461933978 is an apocalyptic number.

461933978 is a deficient number, since it is larger than the sum of its proper divisors (328511974).

461933978 is a wasteful number, since it uses less digits than its factorization.

461933978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990.

The product of its digits is 979776, while the sum is 50.

The square root of 461933978 is about 21492.6493946186. The cubic root of 461933978 is about 773.0245787786.

It can be divided in two parts, 461 and 933978, that added together give a palindrome (934439).

The spelling of 461933978 in words is "four hundred sixty-one million, nine hundred thirty-three thousand, nine hundred seventy-eight".