1478461138 has 32 divisors (see below), whose sum is σ = 2770126848. Its totient is φ = 574938000.

The previous prime is 1478461123. The next prime is 1478461157. The reversal of 1478461138 is 8311648741.

It is a junction number, because it is equal to n+sod(n) for n = 1478461094 and 1478461103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75463 + ... + 93013.

It is an arithmetic number, because the mean of its divisors is an integer number (86566464).

Almost surely, 2^1478461138 is an apocalyptic number.

1478461138 is a deficient number, since it is larger than the sum of its proper divisors (1291665710).

1478461138 is a wasteful number, since it uses less digits than its factorization.

1478461138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18118.

The product of its digits is 129024, while the sum is 43.

The square root of 1478461138 is about 38450.7625151960. The cubic root of 1478461138 is about 1139.2087301750.

The spelling of 1478461138 in words is "one billion, four hundred seventy-eight million, four hundred sixty-one thousand, one hundred thirty-eight".