16220757 has 16 divisors (see below), whose sum is σ = 24832640. Its totient is φ = 9225792.

The previous prime is 16220713. The next prime is 16220759. The reversal of 16220757 is 75702261.

It is not a de Polignac number, because 16220757 - 2⁷ = 16220629 is a prime.

It is a super-2 number, since 2×16220757² = 526225915306098, which contains 22 as substring.

It is the 4028-th Hogben number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16220759) by changing a digit.

It is a nontrivial repunit in base 4027.

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 15 ways as a sum of consecutive naturals, for example, 3123 + ... + 6495.

It is an arithmetic number, because the mean of its divisors is an integer number (1552040).

Almost surely, 2^16220757 is an apocalyptic number.

It is an amenable number.

16220757 is a deficient number, since it is larger than the sum of its proper divisors (8611883).

16220757 is a wasteful number, since it uses less digits than its factorization.

16220757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3612.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 16220757 is about 4027.5000931099. The cubic root of 16220757 is about 253.1378221824.

The spelling of 16220757 in words is "sixteen million, two hundred twenty thousand, seven hundred fifty-seven".