70440448 has 80 divisors (see below), whose sum is σ = 159833520. Its totient is φ = 30744576.

The previous prime is 70440427. The next prime is 70440473. The reversal of 70440448 is 84404407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126186 + ... + 126742.

It is an arithmetic number, because the mean of its divisors is an integer number (1997919).

Almost surely, 2^70440448 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 70440448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79916760).

70440448 is an abundant number, since it is smaller than the sum of its proper divisors (89393072).

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

70440448 is a wasteful number, since it uses less digits than its factorization.

70440448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 70440448 is about 8392.8807926718. The cubic root of 70440448 is about 412.9911099557.

The spelling of 70440448 in words is "seventy million, four hundred forty thousand, four hundred forty-eight".