70729344 has 192 divisors, whose sum is σ = 238680000. Its totient is φ = 20095488.

The previous prime is 70729339. The next prime is 70729409. The reversal of 70729344 is 44392707.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is a junction number, because it is equal to n+sod(n) for n = 70729299 and 70729308.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 395047 + ... + 395225.

It is an arithmetic number, because the mean of its divisors is an integer number (1243125).

Almost surely, 2^70729344 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 70729344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119340000).

70729344 is an abundant number, since it is smaller than the sum of its proper divisors (167950656).

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

70729344 is a wasteful number, since it uses less digits than its factorization.

70729344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 191 counting only the distinct ones).

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

The square root of 70729344 is about 8410.0739592467. The cubic root of 70729344 is about 413.5549372442.

The spelling of 70729344 in words is "seventy million, seven hundred twenty-nine thousand, three hundred forty-four".