20106046 has 4 divisors (see below), whose sum is σ = 30159072. Its totient is φ = 10053022.

The previous prime is 20106041. The next prime is 20106061. The reversal of 20106046 is 64060102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20106041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5026510 + ... + 5026513.

It is an arithmetic number, because the mean of its divisors is an integer number (7539768).

Almost surely, 2^20106046 is an apocalyptic number.

20106046 is a deficient number, since it is larger than the sum of its proper divisors (10053026).

20106046 is a wasteful number, since it uses less digits than its factorization.

20106046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10053025.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20106046 is about 4483.9765833465. The cubic root of 20106046 is about 271.9206714307.

Adding to 20106046 its reverse (64060102), we get a palindrome (84166148).

The spelling of 20106046 in words is "twenty million, one hundred six thousand, forty-six".