108426820 has 12 divisors (see below), whose sum is σ = 227696364. Its totient is φ = 43370720.

The previous prime is 108426803. The next prime is 108426839. The reversal of 108426820 is 28624801.

It can be written as a sum of positive squares in 2 ways, for example, as 69189124 + 39237696 = 8318^2 + 6264^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2710651 + ... + 2710690.

It is an arithmetic number, because the mean of its divisors is an integer number (18974697).

Almost surely, 2^108426820 is an apocalyptic number.

108426820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108426820 is an abundant number, since it is smaller than the sum of its proper divisors (119269544).

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

108426820 is a wasteful number, since it uses less digits than its factorization.

108426820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5421350 (or 5421348 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 108426820 is about 10412.8199830786. The cubic root of 108426820 is about 476.8468377426.

The spelling of 108426820 in words is "one hundred eight million, four hundred twenty-six thousand, eight hundred twenty".