70934220 has 144 divisors (see below), whose sum is σ = 258935040. Its totient is φ = 15355008.

The previous prime is 70934197. The next prime is 70934221. The reversal of 70934220 is 2243907.

It is not an unprimeable number, because it can be changed into a prime (70934221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22459 + ... + 25421.

It is an arithmetic number, because the mean of its divisors is an integer number (1798160).

Almost surely, 2^70934220 is an apocalyptic number.

70934220 is a gapful number since it is divisible by the number (70) 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 70934220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129467520).

70934220 is an abundant number, since it is smaller than the sum of its proper divisors (188000820).

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

70934220 is a wasteful number, since it uses less digits than its factorization.

70934220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004 (or 2999 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 70934220 is about 8422.2455437965. The cubic root of 70934220 is about 413.9538560907.

The spelling of 70934220 in words is "seventy million, nine hundred thirty-four thousand, two hundred twenty".