16220746 has 16 divisors (see below), whose sum is σ = 24820488. Its totient is φ = 7948800.

The previous prime is 16220713. The next prime is 16220759. The reversal of 16220746 is 64702261.

16220746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14630625 + 1590121 = 3825^2 + 1261^2 .

It is a super-2 number, since 2×16220746² = 526225201593032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34956 + ... + 35416.

Almost surely, 2^16220746 is an apocalyptic number.

16220746 is a deficient number, since it is larger than the sum of its proper divisors (8599742).

16220746 is a wasteful number, since it uses less digits than its factorization.

16220746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 16220746 is about 4027.4987274982. The cubic root of 16220746 is about 253.1377649611.

The spelling of 16220746 in words is "sixteen million, two hundred twenty thousand, seven hundred forty-six".