70448724 has 96 divisors (see below), whose sum is σ = 193536000. Its totient is φ = 22115808.

The previous prime is 70448711. The next prime is 70448761. The reversal of 70448724 is 42784407.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196057 + ... + 196415.

It is an arithmetic number, because the mean of its divisors is an integer number (2016000).

Almost surely, 2^70448724 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 70448724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96768000).

70448724 is an abundant number, since it is smaller than the sum of its proper divisors (123087276).

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

70448724 is a wasteful number, since it uses less digits than its factorization.

70448724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 70448724 is about 8393.3738150996. The cubic root of 70448724 is about 413.0072833365.

The spelling of 70448724 in words is "seventy million, four hundred forty-eight thousand, seven hundred twenty-four".