20429302 has 8 divisors (see below), whose sum is σ = 31296096. Its totient is φ = 9997272.

The previous prime is 20429273. The next prime is 20429309. The reversal of 20429302 is 20392402.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20429309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108573 + ... + 108760.

It is an arithmetic number, because the mean of its divisors is an integer number (3912012).

Almost surely, 2^20429302 is an apocalyptic number.

20429302 is a deficient number, since it is larger than the sum of its proper divisors (10866794).

20429302 is a wasteful number, since it uses less digits than its factorization.

20429302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217382.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 20429302 is about 4519.8785381910. The cubic root of 20429302 is about 273.3702035662.

The spelling of 20429302 in words is "twenty million, four hundred twenty-nine thousand, three hundred two".