70239744 has 80 divisors (see below), whose sum is σ = 207955440. Its totient is φ = 23408640.

The previous prime is 70239703. The next prime is 70239749. The reversal of 70239744 is 44793207.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 70239699 and 70239708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70239749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11284 + ... + 16364.

It is an arithmetic number, because the mean of its divisors is an integer number (2599443).

Almost surely, 2^70239744 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 70239744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103977720).

70239744 is an abundant number, since it is smaller than the sum of its proper divisors (137715696).

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

70239744 is an equidigital number, since it uses as much as digits as its factorization.

70239744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5108 (or 5086 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 70239744 is about 8380.9154631222. The cubic root of 70239744 is about 412.5984954879.

The spelling of 70239744 in words is "seventy million, two hundred thirty-nine thousand, seven hundred forty-four".