20276146 has 8 divisors (see below), whose sum is σ = 33179184. Its totient is φ = 9216420.

The previous prime is 20276141. The next prime is 20276167. The reversal of 20276146 is 64167202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20276146² = 822244193226632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20276141) 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 in 3 ways as a sum of consecutive naturals, for example, 460800 + ... + 460843.

It is an arithmetic number, because the mean of its divisors is an integer number (4147398).

Almost surely, 2^20276146 is an apocalyptic number.

20276146 is a deficient number, since it is larger than the sum of its proper divisors (12903038).

20276146 is a wasteful number, since it uses less digits than its factorization.

20276146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921656.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20276146 is about 4502.9041739748. The cubic root of 20276146 is about 272.6853481885.

The spelling of 20276146 in words is "twenty million, two hundred seventy-six thousand, one hundred forty-six".