481278978 has 48 divisors (see below), whose sum is σ = 1059641856. Its totient is φ = 157852800.

The previous prime is 481278971. The next prime is 481278991. The reversal of 481278978 is 879872184.

It is a happy number.

481278978 is a `hidden beast` number, since 481 + 2 + 78 + 97 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (481278971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306351 + ... + 307917.

It is an arithmetic number, because the mean of its divisors is an integer number (22075872).

Almost surely, 2^481278978 is an apocalyptic number.

481278978 is an abundant number, since it is smaller than the sum of its proper divisors (578362878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

481278978 is a wasteful number, since it uses less digits than its factorization.

481278978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839 (or 1836 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 54.

The square root of 481278978 is about 21938.0714284551. The cubic root of 481278978 is about 783.6683322641.

The spelling of 481278978 in words is "four hundred eighty-one million, two hundred seventy-eight thousand, nine hundred seventy-eight".