20395734 has 8 divisors (see below), whose sum is σ = 40791480. Its totient is φ = 6798576.

The previous prime is 20395693. The next prime is 20395741. The reversal of 20395734 is 43759302.

It is a happy number.

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

20395734 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20395695 and 20395704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1699639 + ... + 1699650.

It is an arithmetic number, because the mean of its divisors is an integer number (5098935).

Almost surely, 2^20395734 is an apocalyptic number.

20395734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20395734 is a wasteful number, since it uses less digits than its factorization.

20395734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399294.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 20395734 is about 4516.1636374250. The cubic root of 20395734 is about 273.2203938853.

The spelling of 20395734 in words is "twenty million, three hundred ninety-five thousand, seven hundred thirty-four".