20140930 has 16 divisors (see below), whose sum is σ = 36541440. Its totient is φ = 7992432.

The previous prime is 20140927. The next prime is 20140933. The reversal of 20140930 is 3904102.

It is an interprime number because it is at equal distance from previous prime (20140927) and next prime (20140933).

It is a super-2 number, since 2×20140930² = 811314122529800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20140898 and 20140907.

It is not an unprimeable number, because it can be changed into a prime (20140933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6660 + ... + 9199.

It is an arithmetic number, because the mean of its divisors is an integer number (2283840).

Almost surely, 2^20140930 is an apocalyptic number.

20140930 is a deficient number, since it is larger than the sum of its proper divisors (16400510).

20140930 is a wasteful number, since it uses less digits than its factorization.

20140930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15993.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 20140930 is about 4487.8647484076. The cubic root of 20140930 is about 272.0778414033.

The spelling of 20140930 in words is "twenty million, one hundred forty thousand, nine hundred thirty".