20046407 has 4 divisors (see below), whose sum is σ = 20061360. Its totient is φ = 20031456.

The previous prime is 20046401. The next prime is 20046413. The reversal of 20046407 is 70464002.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20046401) and next prime (20046413).

It is a cyclic number.

It is not a de Polignac number, because 20046407 - 2⁸ = 20046151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20046401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5243 + ... + 8220.

It is an arithmetic number, because the mean of its divisors is an integer number (5015340).

Almost surely, 2^20046407 is an apocalyptic number.

20046407 is a deficient number, since it is larger than the sum of its proper divisors (14953).

20046407 is a wasteful number, since it uses less digits than its factorization.

20046407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14952.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 20046407 is about 4477.3214090570. The cubic root of 20046407 is about 271.6515461158.

The spelling of 20046407 in words is "twenty million, forty-six thousand, four hundred seven".