20425310 has 8 divisors (see below), whose sum is σ = 36765576. Its totient is φ = 8170120.

The previous prime is 20425303. The next prime is 20425319. The reversal of 20425310 is 1352402.

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

It is a super-2 number, since 2×20425310² = 834386577192200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20425319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021256 + ... + 1021275.

It is an arithmetic number, because the mean of its divisors is an integer number (4595697).

Almost surely, 2^20425310 is an apocalyptic number.

20425310 is a deficient number, since it is larger than the sum of its proper divisors (16340266).

20425310 is a wasteful number, since it uses less digits than its factorization.

20425310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042538.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 20425310 is about 4519.4369118287. The cubic root of 20425310 is about 273.3523963835.

Adding to 20425310 its reverse (1352402), we get a palindrome (21777712).

The spelling of 20425310 in words is "twenty million, four hundred twenty-five thousand, three hundred ten".