20069774 has 4 divisors (see below), whose sum is σ = 30104664. Its totient is φ = 10034886.

The previous prime is 20069761. The next prime is 20069779. The reversal of 20069774 is 47796002.

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

It is a super-2 number, since 2×20069774² = 805591656822152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20069779) 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 as a sum of consecutive naturals, namely, 5017442 + ... + 5017445.

It is an arithmetic number, because the mean of its divisors is an integer number (7526166).

Almost surely, 2^20069774 is an apocalyptic number.

20069774 is a deficient number, since it is larger than the sum of its proper divisors (10034890).

20069774 is a wasteful number, since it uses less digits than its factorization.

20069774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10034889.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 20069774 is about 4479.9301333838. The cubic root of 20069774 is about 271.7570549134.

The spelling of 20069774 in words is "twenty million, sixty-nine thousand, seven hundred seventy-four".