70033920 has 160 divisors (see below), whose sum is σ = 244537920. Its totient is φ = 16957440.

The previous prime is 70033891. The next prime is 70033921. The reversal of 70033920 is 2933007.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (70033921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84066 + ... + 84894.

It is an arithmetic number, because the mean of its divisors is an integer number (1528362).

Almost surely, 2^70033920 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 70033920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122268960).

70033920 is an abundant number, since it is smaller than the sum of its proper divisors (174504000).

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

70033920 is a wasteful number, since it uses less digits than its factorization.

70033920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866 (or 850 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 70033920 is about 8368.6271275520. The cubic root of 70033920 is about 412.1950878015.

Adding to 70033920 its reverse (2933007), we get a palindrome (72966927).

The spelling of 70033920 in words is "seventy million, thirty-three thousand, nine hundred twenty".