16220393 has 8 divisors (see below), whose sum is σ = 19038912. Its totient is φ = 13527216.

The previous prime is 16220383. The next prime is 16220401. The reversal of 16220393 is 39302261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16220393 - 2⁸ = 16220137 is a prime.

It is a super-2 number, since 2×16220393² = 526202298148898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16220383) 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 7 ways as a sum of consecutive naturals, for example, 31055 + ... + 31572.

It is an arithmetic number, because the mean of its divisors is an integer number (2379864).

Almost surely, 2^16220393 is an apocalyptic number.

It is an amenable number.

16220393 is a deficient number, since it is larger than the sum of its proper divisors (2818519).

16220393 is an equidigital number, since it uses as much as digits as its factorization.

16220393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62671.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 16220393 is about 4027.4549035340. The cubic root of 16220393 is about 253.1359286650.

The spelling of 16220393 in words is "sixteen million, two hundred twenty thousand, three hundred ninety-three".