70537744 has 40 divisors (see below), whose sum is σ = 142144920. Its totient is φ = 33868800.

The previous prime is 70537723. The next prime is 70537771. The reversal of 70537744 is 44773507.

It can be written as a sum of positive squares in 4 ways, for example, as 12960000 + 57577744 = 3600^2 + 7588^2 .

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, 130114 + ... + 130654.

It is an arithmetic number, because the mean of its divisors is an integer number (3553623).

Almost surely, 2^70537744 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 70537744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71072460).

70537744 is an abundant number, since it is smaller than the sum of its proper divisors (71607176).

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

70537744 is a wasteful number, since it uses less digits than its factorization.

70537744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 70537744 is about 8398.6751336148. The cubic root of 70537744 is about 413.1811707219.

The spelling of 70537744 in words is "seventy million, five hundred thirty-seven thousand, seven hundred forty-four".