20731414 has 12 divisors (see below), whose sum is σ = 34181532. Its totient is φ = 9423260.

The previous prime is 20731411. The next prime is 20731423. The reversal of 20731414 is 41413702.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20731411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42592 + ... + 43075.

It is an arithmetic number, because the mean of its divisors is an integer number (2848461).

Almost surely, 2^20731414 is an apocalyptic number.

20731414 is a deficient number, since it is larger than the sum of its proper divisors (13450118).

20731414 is a wasteful number, since it uses less digits than its factorization.

20731414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85691 (or 85680 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 20731414 is about 4553.1762540012. The cubic root of 20731414 is about 274.7111634035.

The spelling of 20731414 in words is "twenty million, seven hundred thirty-one thousand, four hundred fourteen".