20670298 has 16 divisors (see below), whose sum is σ = 33900480. Its totient is φ = 9374400.

The previous prime is 20670263. The next prime is 20670311. The reversal of 20670298 is 89207602.

It is a super-2 number, since 2×20670298² = 854522438817608, which contains 22 as substring.

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, 13138 + ... + 14626.

It is an arithmetic number, because the mean of its divisors is an integer number (2118780).

Almost surely, 2^20670298 is an apocalyptic number.

20670298 is a deficient number, since it is larger than the sum of its proper divisors (13230182).

20670298 is a wasteful number, since it uses less digits than its factorization.

20670298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 20670298 is about 4546.4599415369. The cubic root of 20670298 is about 274.4409491172.

The spelling of 20670298 in words is "twenty million, six hundred seventy thousand, two hundred ninety-eight".