70538944 has 56 divisors (see below), whose sum is σ = 168412160. Its totient is φ = 28636416.

The previous prime is 70538929. The next prime is 70538947. The reversal of 70538944 is 44983507.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 70538897 and 70538906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70538947) 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, 4369 + ... + 12655.

It is an arithmetic number, because the mean of its divisors is an integer number (3007360).

Almost surely, 2^70538944 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 70538944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84206080).

70538944 is an abundant number, since it is smaller than the sum of its proper divisors (97873216).

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

70538944 is a wasteful number, since it uses less digits than its factorization.

70538944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8325 (or 8315 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 70538944 is about 8398.7465731501. The cubic root of 70538944 is about 413.1835137445.

The spelling of 70538944 in words is "seventy million, five hundred thirty-eight thousand, nine hundred forty-four".