108278478 has 64 divisors (see below), whose sum is σ = 300003840. Its totient is φ = 28123200.

The previous prime is 108278461. The next prime is 108278483. The reversal of 108278478 is 874872801.

108278478 is a `hidden beast` number, since 108 + 2 + 78 + 478 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8863 + ... + 17178.

It is an arithmetic number, because the mean of its divisors is an integer number (4687560).

Almost surely, 2^108278478 is an apocalyptic number.

108278478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

108278478 is an abundant number, since it is smaller than the sum of its proper divisors (191725362).

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

108278478 is a wasteful number, since it uses less digits than its factorization.

108278478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26070 (or 26064 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 45.

The square root of 108278478 is about 10405.6944986868. The cubic root of 108278478 is about 476.6292756517.

The spelling of 108278478 in words is "one hundred eight million, two hundred seventy-eight thousand, four hundred seventy-eight".