20014431 has 8 divisors (see below), whose sum is σ = 26757120. Its totient is φ = 13307352.

The previous prime is 20014427. The next prime is 20014453. The reversal of 20014431 is 13441002.

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

It is not a de Polignac number, because 20014431 - 2² = 20014427 is a prime.

It is a super-2 number, since 2×20014431² = 801154896507522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20014431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20014481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7561 + ... + 9858.

It is an arithmetic number, because the mean of its divisors is an integer number (3344640).

Almost surely, 2^20014431 is an apocalyptic number.

20014431 is a deficient number, since it is larger than the sum of its proper divisors (6742689).

20014431 is a wasteful number, since it uses less digits than its factorization.

20014431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17805.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20014431 is about 4473.7490989102. The cubic root of 20014431 is about 271.5070322311.

Adding to 20014431 its reverse (13441002), we get a palindrome (33455433).

The spelling of 20014431 in words is "twenty million, fourteen thousand, four hundred thirty-one".