20336790 has 32 divisors (see below), whose sum is σ = 49612896. Its totient is φ = 5333760.

The previous prime is 20336747. The next prime is 20336809. The reversal of 20336790 is 9763302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3727 + ... + 7386.

It is an arithmetic number, because the mean of its divisors is an integer number (1550403).

Almost surely, 2^20336790 is an apocalyptic number.

20336790 is an abundant number, since it is smaller than the sum of its proper divisors (29276106).

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

20336790 is a wasteful number, since it uses less digits than its factorization.

20336790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11184.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 20336790 is about 4509.6330227636. The cubic root of 20336790 is about 272.9569361423.

The spelling of 20336790 in words is "twenty million, three hundred thirty-six thousand, seven hundred ninety".