70429920 has 96 divisors (see below), whose sum is σ = 242040960. Its totient is φ = 17072640.

The previous prime is 70429897. The next prime is 70429921. The reversal of 70429920 is 2992407.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70429921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1390 + ... + 11949.

It is an arithmetic number, because the mean of its divisors is an integer number (2521260).

Almost surely, 2^70429920 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 70429920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121020480).

70429920 is an abundant number, since it is smaller than the sum of its proper divisors (171611040).

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

70429920 is a wasteful number, since it uses less digits than its factorization.

70429920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13368 (or 13360 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 70429920 is about 8392.2535710022. The cubic root of 70429920 is about 412.9705337708.

The spelling of 70429920 in words is "seventy million, four hundred twenty-nine thousand, nine hundred twenty".