20614431 has 8 divisors (see below), whose sum is σ = 28156464. Its totient is φ = 13407680.

The previous prime is 20614427. The next prime is 20614453. The reversal of 20614431 is 13441602.

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

It is a cyclic number.

It is not a de Polignac number, because 20614431 - 2² = 20614427 is a prime.

It is a super-2 number, since 2×20614431² = 849909530907522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20614398 and 20614407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20614471) 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, 83676 + ... + 83921.

It is an arithmetic number, because the mean of its divisors is an integer number (3519558).

Almost surely, 2^20614431 is an apocalyptic number.

20614431 is a deficient number, since it is larger than the sum of its proper divisors (7542033).

20614431 is a wasteful number, since it uses less digits than its factorization.

20614431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167641.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 20614431 is about 4540.3117734358. The cubic root of 20614431 is about 274.1934760458.

The spelling of 20614431 in words is "twenty million, six hundred fourteen thousand, four hundred thirty-one".