20622129 has 16 divisors (see below), whose sum is σ = 30131904. Its totient is φ = 12441600.

The previous prime is 20622109. The next prime is 20622149. The reversal of 20622129 is 92122602.

It is an interprime number because it is at equal distance from previous prime (20622109) and next prime (20622149).

It is not a de Polignac number, because 20622129 - 2⁷ = 20622001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20622099 and 20622108.

It is not an unprimeable number, because it can be changed into a prime (20622109) by changing a digit.

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, 6657 + ... + 9249.

It is an arithmetic number, because the mean of its divisors is an integer number (1883244).

Almost surely, 2^20622129 is an apocalyptic number.

It is an amenable number.

20622129 is a deficient number, since it is larger than the sum of its proper divisors (9509775).

20622129 is a wasteful number, since it uses less digits than its factorization.

20622129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2848.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 20622129 is about 4541.1594334487. The cubic root of 20622129 is about 274.2276022800.

The spelling of 20622129 in words is "twenty million, six hundred twenty-two thousand, one hundred twenty-nine".