20460722 has 8 divisors (see below), whose sum is σ = 31439772. Its totient is φ = 9980800.

The previous prime is 20460721. The next prime is 20460743. The reversal of 20460722 is 22706402.

It can be written as a sum of positive squares in 2 ways, for example, as 19018321 + 1442401 = 4361^2 + 1201^2 .

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

It is a super-2 number, since 2×20460722² = 837282289522568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20460721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124679 + ... + 124842.

Almost surely, 2^20460722 is an apocalyptic number.

20460722 is a deficient number, since it is larger than the sum of its proper divisors (10979050).

20460722 is a wasteful number, since it uses less digits than its factorization.

20460722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249564.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 20460722 is about 4523.3529599181. The cubic root of 20460722 is about 273.5102783821.

The spelling of 20460722 in words is "twenty million, four hundred sixty thousand, seven hundred twenty-two".