20622467 has 16 divisors (see below), whose sum is σ = 23224320. Its totient is φ = 18216000.

The previous prime is 20622463. The next prime is 20622487. The reversal of 20622467 is 76422602.

It is not a de Polignac number, because 20622467 - 2² = 20622463 is a prime.

It is a super-2 number, since 2×20622467² = 850572290332178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20622463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17342 + ... + 18492.

It is an arithmetic number, because the mean of its divisors is an integer number (1451520).

Almost surely, 2^20622467 is an apocalyptic number.

20622467 is a deficient number, since it is larger than the sum of its proper divisors (2601853).

20622467 is a wasteful number, since it uses less digits than its factorization.

20622467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 20622467 is about 4541.1966484617. The cubic root of 20622467 is about 274.2291004832.

The spelling of 20622467 in words is "twenty million, six hundred twenty-two thousand, four hundred sixty-seven".