478781954 has 16 divisors (see below), whose sum is σ = 821082048. Its totient is φ = 205114032.

The previous prime is 478781939. The next prime is 478781957. The reversal of 478781954 is 459187874.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 478781896 and 478781905.

It is not an unprimeable number, because it can be changed into a prime (478781957) 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, 46217 + ... + 55619.

It is an arithmetic number, because the mean of its divisors is an integer number (51317628).

Almost surely, 2^478781954 is an apocalyptic number.

478781954 is a deficient number, since it is larger than the sum of its proper divisors (342300094).

478781954 is a wasteful number, since it uses less digits than its factorization.

478781954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13049.

The product of its digits is 2257920, while the sum is 53.

The square root of 478781954 is about 21881.0866731979. The cubic root of 478781954 is about 782.3106771135.

The spelling of 478781954 in words is "four hundred seventy-eight million, seven hundred eighty-one thousand, nine hundred fifty-four".