16440722 has 16 divisors (see below), whose sum is σ = 25824960. Its totient is φ = 7834992.

The previous prime is 16440673. The next prime is 16440727. The reversal of 16440722 is 22704461.

It is a super-3 number, since 3×16440722³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16440691 and 16440700.

It is not an unprimeable number, because it can be changed into a prime (16440727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18848 + ... + 19700.

It is an arithmetic number, because the mean of its divisors is an integer number (1614060).

Almost surely, 2^16440722 is an apocalyptic number.

16440722 is a deficient number, since it is larger than the sum of its proper divisors (9384238).

16440722 is a wasteful number, since it uses less digits than its factorization.

16440722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 16440722 is about 4054.7160196492. The cubic root of 16440722 is about 254.2769315114.

The spelling of 16440722 in words is "sixteen million, four hundred forty thousand, seven hundred twenty-two".