70002420 has 48 divisors (see below), whose sum is σ = 196627200. Its totient is φ = 18608256.

The previous prime is 70002407. The next prime is 70002421. The reversal of 70002420 is 2420007.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 70002420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70002421) 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, 19269 + ... + 22611.

It is an arithmetic number, because the mean of its divisors is an integer number (4096400).

Almost surely, 2^70002420 is an apocalyptic number.

It is an amenable number.

70002420 is an abundant number, since it is smaller than the sum of its proper divisors (126624780).

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

70002420 is a wasteful number, since it uses less digits than its factorization.

70002420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704 (or 3702 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 70002420 is about 8366.7448867526. The cubic root of 70002420 is about 412.1332792168.

Adding to 70002420 its reverse (2420007), we get a palindrome (72422427).

The spelling of 70002420 in words is "seventy million, two thousand, four hundred twenty".