20300070 has 32 divisors (see below), whose sum is σ = 55680768. Its totient is φ = 4639968.

The previous prime is 20300041. The next prime is 20300081. The reversal of 20300070 is 7000302.

It is a Curzon number.

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, 48124 + ... + 48543.

It is an arithmetic number, because the mean of its divisors is an integer number (1740024).

Almost surely, 2^20300070 is an apocalyptic number.

20300070 is an abundant number, since it is smaller than the sum of its proper divisors (35380698).

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

20300070 is a wasteful number, since it uses less digits than its factorization.

20300070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96684.

The product of its (nonzero) digits is 42, while the sum is 12.

The square root of 20300070 is about 4505.5598986142. The cubic root of 20300070 is about 272.7925539687.

Adding to 20300070 its reverse (7000302), we get a palindrome (27300372).

The spelling of 20300070 in words is "twenty million, three hundred thousand, seventy".