20102074 has 16 divisors (see below), whose sum is σ = 31484160. Its totient is φ = 9614880.

The previous prime is 20102029. The next prime is 20102087. The reversal of 20102074 is 47020102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3697 + ... + 7339.

It is an arithmetic number, because the mean of its divisors is an integer number (1967760).

Almost surely, 2^20102074 is an apocalyptic number.

20102074 is a deficient number, since it is larger than the sum of its proper divisors (11382086).

20102074 is a wasteful number, since it uses less digits than its factorization.

20102074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3765.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 20102074 is about 4483.5336510391. The cubic root of 20102074 is about 271.9027640471.

Adding to 20102074 its reverse (47020102), we get a palindrome (67122176).

The spelling of 20102074 in words is "twenty million, one hundred two thousand, seventy-four".