70007420440 has 64 divisors (see below), whose sum is σ = 158154716160. Its totient is φ = 27889704960.

The previous prime is 70007420429. The next prime is 70007420459. The reversal of 70007420440 is 4402470007.

It is a junction number, because it is equal to n+sod(n) for n = 70007420399 and 70007420408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26052777 + ... + 26055463.

It is an arithmetic number, because the mean of its divisors is an integer number (2471167440).

Almost surely, 2^70007420440 is an apocalyptic number.

It is an amenable number.

70007420440 is an abundant number, since it is smaller than the sum of its proper divisors (88147295720).

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

70007420440 is a wasteful number, since it uses less digits than its factorization.

70007420440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5092 (or 5088 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 28.

Adding to 70007420440 its reverse (4402470007), we get a palindrome (74409890447).

The spelling of 70007420440 in words is "seventy billion, seven million, four hundred twenty thousand, four hundred forty".