1478684040 has 64 divisors (see below), whose sum is σ = 4439664000. Its totient is φ = 393994752.

The previous prime is 1478683993. The next prime is 1478684057. The reversal of 1478684040 is 404868741.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1478683983 and 1478684001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167661 + ... + 176259.

It is an arithmetic number, because the mean of its divisors is an integer number (69369750).

Almost surely, 2^1478684040 is an apocalyptic number.

1478684040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1478684040 is an abundant number, since it is smaller than the sum of its proper divisors (2960979960).

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

1478684040 is a wasteful number, since it uses less digits than its factorization.

1478684040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10046 (or 10042 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 1478684040 is about 38453.6609440506. The cubic root of 1478684040 is about 1139.2659786968.

The spelling of 1478684040 in words is "one billion, four hundred seventy-eight million, six hundred eighty-four thousand, forty".