1478378475 has 144 divisors (see below), whose sum is σ = 3246077952. Its totient is φ = 628404480.

The previous prime is 1478378471. The next prime is 1478378483. The reversal of 1478378475 is 5748738741.

1478378475 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1478378475 - 2² = 1478378471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1478378471) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1339774 + ... + 1340876.

It is an arithmetic number, because the mean of its divisors is an integer number (22542208).

Almost surely, 2^1478378475 is an apocalyptic number.

1478378475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1478378475 is an abundant number, since it is smaller than the sum of its proper divisors (1767699477).

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

1478378475 is a wasteful number, since it uses less digits than its factorization.

1478378475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186 (or 1178 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 54.

The square root of 1478378475 is about 38449.6875800051. The cubic root of 1478378475 is about 1139.1874981512.

The spelling of 1478378475 in words is "one billion, four hundred seventy-eight million, three hundred seventy-eight thousand, four hundred seventy-five".