20574914 has 4 divisors (see below), whose sum is σ = 30862374. Its totient is φ = 10287456.

The previous prime is 20574899. The next prime is 20574959. The reversal of 20574914 is 41947502.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 12355225 + 8219689 = 3515^2 + 2867^2 .

It is a super-2 number, since 2×20574914² = 846654172214792, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5143727 + ... + 5143730.

Almost surely, 2^20574914 is an apocalyptic number.

20574914 is a deficient number, since it is larger than the sum of its proper divisors (10287460).

20574914 is a wasteful number, since it uses less digits than its factorization.

20574914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10287459.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 20574914 is about 4535.9578922208. The cubic root of 20574914 is about 274.0181581729.

The spelling of 20574914 in words is "twenty million, five hundred seventy-four thousand, nine hundred fourteen".