20030070 has 32 divisors (see below), whose sum is σ = 48405600. Its totient is φ = 5304320.

The previous prime is 20030069. The next prime is 20030071. The reversal of 20030070 is 7003002.

20030070 is nontrivially palindromic in base 12.

It is an interprime number because it is at equal distance from previous prime (20030069) and next prime (20030071).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2230 + ... + 6710.

It is an arithmetic number, because the mean of its divisors is an integer number (1512675).

Almost surely, 2^20030070 is an apocalyptic number.

20030070 is an abundant number, since it is smaller than the sum of its proper divisors (28375530).

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

20030070 is a wasteful number, since it uses less digits than its factorization.

20030070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4640.

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

The square root of 20030070 is about 4475.4966204881. The cubic root of 20030070 is about 271.5777311018.

Adding to 20030070 its reverse (7003002), we get a palindrome (27033072).

The spelling of 20030070 in words is "twenty million, thirty thousand, seventy".