70194816 has 128 divisors (see below), whose sum is σ = 218280000. Its totient is φ = 22146048.

The previous prime is 70194799. The next prime is 70194821. The reversal of 70194816 is 61849107.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65130 + ... + 66198.

Almost surely, 2^70194816 is an apocalyptic number.

70194816 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70194816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109140000).

70194816 is an abundant number, since it is smaller than the sum of its proper divisors (148085184).

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

70194816 is a wasteful number, since it uses less digits than its factorization.

70194816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1093 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 70194816 is about 8378.2346589243. The cubic root of 70194816 is about 412.5105055176.

The spelling of 70194816 in words is "seventy million, one hundred ninety-four thousand, eight hundred sixteen".