20345514 has 16 divisors (see below), whose sum is σ = 46504128. Its totient is φ = 5812992.

The previous prime is 20345509. The next prime is 20345519. The reversal of 20345514 is 41554302.

It is an interprime number because it is at equal distance from previous prime (20345509) and next prime (20345519).

It is not an unprimeable number, because it can be changed into a prime (20345519) 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 7 ways as a sum of consecutive naturals, for example, 242167 + ... + 242250.

It is an arithmetic number, because the mean of its divisors is an integer number (2906508).

Almost surely, 2^20345514 is an apocalyptic number.

20345514 is an abundant number, since it is smaller than the sum of its proper divisors (26158614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20345514 is a wasteful number, since it uses less digits than its factorization.

20345514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484429.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 20345514 is about 4510.6001817940. The cubic root of 20345514 is about 272.9959612439.

Adding to 20345514 its reverse (41554302), we get a palindrome (61899816).

The spelling of 20345514 in words is "twenty million, three hundred forty-five thousand, five hundred fourteen".