70018648 has 128 divisors (see below), whose sum is σ = 172800000. Its totient is φ = 26417664.

The previous prime is 70018639. The next prime is 70018651. The reversal of 70018648 is 84681007.

It is a happy number.

It is a super-2 number, since 2×70018648² = 9805222135495808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 886273 + ... + 886351.

It is an arithmetic number, because the mean of its divisors is an integer number (1350000).

Almost surely, 2^70018648 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 70018648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86400000).

70018648 is an abundant number, since it is smaller than the sum of its proper divisors (102781352).

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

70018648 is a wasteful number, since it uses less digits than its factorization.

70018648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 70018648 is about 8367.7146222849. The cubic root of 70018648 is about 412.1651237450.

The spelling of 70018648 in words is "seventy million, eighteen thousand, six hundred forty-eight".