20246554 has 8 divisors (see below), whose sum is σ = 30483540. Its totient is φ = 10085376.

The previous prime is 20246539. The next prime is 20246557. The reversal of 20246554 is 45564202.

It can be written as a sum of positive squares in 2 ways, for example, as 17264025 + 2982529 = 4155^2 + 1727^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20246557) 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, 18279 + ... + 19354.

Almost surely, 2^20246554 is an apocalyptic number.

20246554 is a deficient number, since it is larger than the sum of its proper divisors (10236986).

20246554 is a wasteful number, since it uses less digits than its factorization.

20246554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37904.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 20246554 is about 4499.6170948204. The cubic root of 20246554 is about 272.5526268192.

The spelling of 20246554 in words is "twenty million, two hundred forty-six thousand, five hundred fifty-four".