75222406 has 32 divisors (see below), whose sum is σ = 139426560. Its totient is φ = 29712096.

The previous prime is 75222403. The next prime is 75222409. The reversal of 75222406 is 60422257.

It is an interprime number because it is at equal distance from previous prime (75222403) and next prime (75222409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75222401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6021 + ... + 13663.

It is an arithmetic number, because the mean of its divisors is an integer number (4357080).

Almost surely, 2^75222406 is an apocalyptic number.

75222406 is a deficient number, since it is larger than the sum of its proper divisors (64204154).

75222406 is a wasteful number, since it uses less digits than its factorization.

75222406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7708.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 75222406 is about 8673.0851488960. The cubic root of 75222406 is about 422.1327756917.

The spelling of 75222406 in words is "seventy-five million, two hundred twenty-two thousand, four hundred six".