75221338 has 16 divisors (see below), whose sum is σ = 116158464. Its totient is φ = 36514800.

The previous prime is 75221329. The next prime is 75221359. The reversal of 75221338 is 83312257.

It is a super-3 number, since 3×75221338³ (a number of 25 digits) contains 333 as substring.

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, 8788 + ... + 15088.

It is an arithmetic number, because the mean of its divisors is an integer number (7259904).

Almost surely, 2^75221338 is an apocalyptic number.

75221338 is a deficient number, since it is larger than the sum of its proper divisors (40937126).

75221338 is a wasteful number, since it uses less digits than its factorization.

75221338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6477.

The product of its digits is 10080, while the sum is 31.

The square root of 75221338 is about 8673.0235788910. The cubic root of 75221338 is about 422.1307778830.

The spelling of 75221338 in words is "seventy-five million, two hundred twenty-one thousand, three hundred thirty-eight".