75408224 has 24 divisors (see below), whose sum is σ = 148887648. Its totient is φ = 37595520.

The previous prime is 75408211. The next prime is 75408227. The reversal of 75408224 is 42280457.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75408227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8534 + ... + 14954.

It is an arithmetic number, because the mean of its divisors is an integer number (6203652).

Almost surely, 2^75408224 is an apocalyptic number.

It is an amenable number.

75408224 is a deficient number, since it is larger than the sum of its proper divisors (73479424).

75408224 is a wasteful number, since it uses less digits than its factorization.

75408224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798 (or 6790 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 75408224 is about 8683.7908772609. The cubic root of 75408224 is about 422.4800807574.

The spelling of 75408224 in words is "seventy-five million, four hundred eight thousand, two hundred twenty-four".