70239648 has 96 divisors (see below), whose sum is σ = 197116416. Its totient is φ = 21823488.

The previous prime is 70239641. The next prime is 70239649. The reversal of 70239648 is 84693207.

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

It is not an unprimeable number, because it can be changed into a prime (70239641) 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, 314865 + ... + 315087.

It is an arithmetic number, because the mean of its divisors is an integer number (2053296).

Almost surely, 2^70239648 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 70239648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98558208).

70239648 is an abundant number, since it is smaller than the sum of its proper divisors (126876768).

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

70239648 is a wasteful number, since it uses less digits than its factorization.

70239648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 70239648 is about 8380.9097358222. The cubic root of 70239648 is about 412.5983075152.

The spelling of 70239648 in words is "seventy million, two hundred thirty-nine thousand, six hundred forty-eight".