16420722 has 8 divisors (see below), whose sum is σ = 32841456. Its totient is φ = 5473572.

The previous prime is 16420721. The next prime is 16420739. The reversal of 16420722 is 22702461.

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

16420722 is an admirable number.

It is a super-2 number, since 2×16420722² = 539280222002568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16420692 and 16420701.

It is not an unprimeable number, because it can be changed into a prime (16420721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1368388 + ... + 1368399.

It is an arithmetic number, because the mean of its divisors is an integer number (4105182).

Almost surely, 2^16420722 is an apocalyptic number.

16420722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16420722 is a wasteful number, since it uses less digits than its factorization.

16420722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736792.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 16420722 is about 4052.2490051822. The cubic root of 16420722 is about 254.1737810902.

The spelling of 16420722 in words is "sixteen million, four hundred twenty thousand, seven hundred twenty-two".