20369330 has 32 divisors (see below), whose sum is σ = 39432960. Its totient is φ = 7551360.

The previous prime is 20369309. The next prime is 20369347. The reversal of 20369330 is 3396302.

It is a self number, because there is not a number n which added to its sum of digits gives 20369330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7790 + ... + 10070.

It is an arithmetic number, because the mean of its divisors is an integer number (1232280).

Almost surely, 2^20369330 is an apocalyptic number.

20369330 is a deficient number, since it is larger than the sum of its proper divisors (19063630).

20369330 is a wasteful number, since it uses less digits than its factorization.

20369330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354.

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 20369330 is about 4513.2394131045. The cubic root of 20369330 is about 273.1024406797.

The spelling of 20369330 in words is "twenty million, three hundred sixty-nine thousand, three hundred thirty".