20346274 has 16 divisors (see below), whose sum is σ = 32941440. Its totient is φ = 9369360.

The previous prime is 20346251. The next prime is 20346301. The reversal of 20346274 is 47264302.

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 in 7 ways as a sum of consecutive naturals, for example, 21879 + ... + 22789.

It is an arithmetic number, because the mean of its divisors is an integer number (2058840).

Almost surely, 2^20346274 is an apocalyptic number.

20346274 is a deficient number, since it is larger than the sum of its proper divisors (12595166).

20346274 is a wasteful number, since it uses less digits than its factorization.

20346274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 20346274 is about 4510.6844270022. The cubic root of 20346274 is about 272.9993604264. Note that the first 3 decimals are identical.

The spelling of 20346274 in words is "twenty million, three hundred forty-six thousand, two hundred seventy-four".