20392330 has 24 divisors (see below), whose sum is σ = 42700068. Its totient is φ = 6991488.

The previous prime is 20392297. The next prime is 20392343. The reversal of 20392330 is 3329302.

It can be written as a sum of positive squares in 2 ways, for example, as 18412681 + 1979649 = 4291^2 + 1407^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20319 + ... + 21298.

Almost surely, 2^20392330 is an apocalyptic number.

20392330 is an abundant number, since it is smaller than the sum of its proper divisors (22307738).

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

20392330 is a wasteful number, since it uses less digits than its factorization.

20392330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41638 (or 41631 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 20392330 is about 4515.7867531583. The cubic root of 20392330 is about 273.2051930927.

The spelling of 20392330 in words is "twenty million, three hundred ninety-two thousand, three hundred thirty".