20469801 has 8 divisors (see below), whose sum is σ = 29774304. Its totient is φ = 12405920.

The previous prime is 20469791. The next prime is 20469809. The reversal of 20469801 is 10896402.

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

It is a cyclic number.

It is not a de Polignac number, because 20469801 - 2¹¹ = 20467753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20469809) 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, 310116 + ... + 310181.

It is an arithmetic number, because the mean of its divisors is an integer number (3721788).

Almost surely, 2^20469801 is an apocalyptic number.

It is an amenable number.

20469801 is a deficient number, since it is larger than the sum of its proper divisors (9304503).

20469801 is a wasteful number, since it uses less digits than its factorization.

20469801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620311.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 20469801 is about 4524.3564183207. The cubic root of 20469801 is about 273.5507271440.

The spelling of 20469801 in words is "twenty million, four hundred sixty-nine thousand, eight hundred one".