75478216 has 16 divisors (see below), whose sum is σ = 154387440. Its totient is φ = 34308240.

The previous prime is 75478189. The next prime is 75478217. The reversal of 75478216 is 61287457.

It is a super-2 number, since 2×75478216² = 11393922181085312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75478217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428766 + ... + 428941.

It is an arithmetic number, because the mean of its divisors is an integer number (9649215).

Almost surely, 2^75478216 is an apocalyptic number.

It is an amenable number.

75478216 is an abundant number, since it is smaller than the sum of its proper divisors (78909224).

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

75478216 is a wasteful number, since it uses less digits than its factorization.

75478216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857724 (or 857720 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 75478216 is about 8687.8199797187. The cubic root of 75478216 is about 422.6107521006.

The spelling of 75478216 in words is "seventy-five million, four hundred seventy-eight thousand, two hundred sixteen".