20494246 has 4 divisors (see below), whose sum is σ = 30741372. Its totient is φ = 10247122.

The previous prime is 20494237. The next prime is 20494283. The reversal of 20494246 is 64249402.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5123560 + ... + 5123563.

It is an arithmetic number, because the mean of its divisors is an integer number (7685343).

Almost surely, 2^20494246 is an apocalyptic number.

20494246 is a deficient number, since it is larger than the sum of its proper divisors (10247126).

20494246 is a wasteful number, since it uses less digits than its factorization.

20494246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10247125.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 20494246 is about 4527.0571014733. The cubic root of 20494246 is about 273.6595750910.

The spelling of 20494246 in words is "twenty million, four hundred ninety-four thousand, two hundred forty-six".