16257222 has 12 divisors (see below), whose sum is σ = 35224020. Its totient is φ = 5419068.

The previous prime is 16257221. The next prime is 16257223. The reversal of 16257222 is 22275261.

It is an interprime number because it is at equal distance from previous prime (16257221) and next prime (16257223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16257221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 451572 + ... + 451607.

It is an arithmetic number, because the mean of its divisors is an integer number (2935335).

Almost surely, 2^16257222 is an apocalyptic number.

16257222 is an abundant number, since it is smaller than the sum of its proper divisors (18966798).

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

16257222 is a wasteful number, since it uses less digits than its factorization.

16257222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903187 (or 903184 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 16257222 is about 4032.0245534967. The cubic root of 16257222 is about 253.3273686654.

The spelling of 16257222 in words is "sixteen million, two hundred fifty-seven thousand, two hundred twenty-two".