108421264 has 40 divisors (see below), whose sum is σ = 250519680. Its totient is φ = 44444928.

The previous prime is 108421249. The next prime is 108421267. The reversal of 108421264 is 462124801.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (108421267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18469 + ... + 23620.

It is an arithmetic number, because the mean of its divisors is an integer number (6262992).

Almost surely, 2^108421264 is an apocalyptic number.

108421264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

108421264 is an abundant number, since it is smaller than the sum of its proper divisors (142098416).

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

108421264 is a wasteful number, since it uses less digits than its factorization.

108421264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42127 (or 42121 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 108421264 is about 10412.5531931414. The cubic root of 108421264 is about 476.8386927520.

The spelling of 108421264 in words is "one hundred eight million, four hundred twenty-one thousand, two hundred sixty-four".