70063020 has 72 divisors (see below), whose sum is σ = 214534320. Its totient is φ = 18506880.

The previous prime is 70062989. The next prime is 70063057. The reversal of 70063020 is 2036007.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 70062984 and 70063002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17835 + ... + 21405.

Almost surely, 2^70063020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70063020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107267160).

70063020 is an abundant number, since it is smaller than the sum of its proper divisors (144471300).

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

70063020 is a wasteful number, since it uses less digits than its factorization.

70063020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695 (or 3690 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 70063020 is about 8370.3655834139. The cubic root of 70063020 is about 412.2521706936.

Adding to 70063020 its reverse (2036007), we get a palindrome (72099027).

The spelling of 70063020 in words is "seventy million, sixty-three thousand, twenty".