75421108 has 24 divisors (see below), whose sum is σ = 158782400. Its totient is φ = 30621888.

The previous prime is 75421081. The next prime is 75421139. The reversal of 75421108 is 80112457.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70353 + ... + 71416.

Almost surely, 2^75421108 is an apocalyptic number.

It is an amenable number.

75421108 is an abundant number, since it is smaller than the sum of its proper divisors (83361292).

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

75421108 is a wasteful number, since it uses less digits than its factorization.

75421108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141799 (or 141797 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 75421108 is about 8684.5326874853. The cubic root of 75421108 is about 422.5041405707.

The spelling of 75421108 in words is "seventy-five million, four hundred twenty-one thousand, one hundred eight".