70024320 has 96 divisors (see below), whose sum is σ = 241822620. Its totient is φ = 18671616.

The previous prime is 70024303. The next prime is 70024333. The reversal of 70024320 is 2342007.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61591104 + 8433216 = 7848^2 + 2904^2 .

It is a tau number, because it is divible by the number of its divisors (96).

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 = 70024293 and 70024302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319 + ... + 11838.

Almost surely, 2^70024320 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 70024320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120911310).

70024320 is an abundant number, since it is smaller than the sum of its proper divisors (171798300).

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

70024320 is a wasteful number, since it uses less digits than its factorization.

70024320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12182 (or 12167 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 70024320 is about 8368.0535371136. The cubic root of 70024320 is about 412.1762528633.

Adding to 70024320 its reverse (2342007), we get a palindrome (72366327).

The spelling of 70024320 in words is "seventy million, twenty-four thousand, three hundred twenty".