20246401 has 8 divisors (see below), whose sum is σ = 23364224. Its totient is φ = 17184960.

The previous prime is 20246399. The next prime is 20246453. The reversal of 20246401 is 10464202.

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 20246401 - 2¹ = 20246399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20246491) 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 7 ways as a sum of consecutive naturals, for example, 13320 + ... + 14761.

It is an arithmetic number, because the mean of its divisors is an integer number (2920528).

Almost surely, 2^20246401 is an apocalyptic number.

It is an amenable number.

20246401 is a deficient number, since it is larger than the sum of its proper divisors (3117823).

20246401 is a wasteful number, since it uses less digits than its factorization.

20246401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28191.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 20246401 is about 4499.6000933416. The cubic root of 20246401 is about 272.5519402718.

The spelling of 20246401 in words is "twenty million, two hundred forty-six thousand, four hundred one".