73890222 has 16 divisors (see below), whose sum is σ = 168892032. Its totient is φ = 21111480.

The previous prime is 73890217. The next prime is 73890227. The reversal of 73890222 is 22209837.

It is an interprime number because it is at equal distance from previous prime (73890217) and next prime (73890227).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73890227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879604 + ... + 879687.

It is an arithmetic number, because the mean of its divisors is an integer number (10555752).

Almost surely, 2^73890222 is an apocalyptic number.

73890222 is an abundant number, since it is smaller than the sum of its proper divisors (95001810).

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

73890222 is a wasteful number, since it uses less digits than its factorization.

73890222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759303.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 73890222 is about 8595.9421822160. The cubic root of 73890222 is about 419.6259367895.

The spelling of 73890222 in words is "seventy-three million, eight hundred ninety thousand, two hundred twenty-two".