20914407 has 6 divisors (see below), whose sum is σ = 30209712. Its totient is φ = 13942932.

The previous prime is 20914393. The next prime is 20914409. The reversal of 20914407 is 70441902.

It is a happy number.

It is not a de Polignac number, because 20914407 - 2⁴ = 20914391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20914409) 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, 1161903 + ... + 1161920.

It is an arithmetic number, because the mean of its divisors is an integer number (5034952).

Almost surely, 2^20914407 is an apocalyptic number.

20914407 is a deficient number, since it is larger than the sum of its proper divisors (9295305).

20914407 is a wasteful number, since it uses less digits than its factorization.

20914407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323829 (or 2323826 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 20914407 is about 4573.2271975051. The cubic root of 20914407 is about 275.5170745333.

It can be divided in two parts, 20914 and 407, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 20914407 in words is "twenty million, nine hundred fourteen thousand, four hundred seven".