70129392 has 80 divisors (see below), whose sum is σ = 190821120. Its totient is φ = 22150656.

The previous prime is 70129387. The next prime is 70129417. The reversal of 70129392 is 29392107.

It is a congruent number.

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, 153228 + ... + 153684.

It is an arithmetic number, because the mean of its divisors is an integer number (2385264).

Almost surely, 2^70129392 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 70129392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95410560).

70129392 is an abundant number, since it is smaller than the sum of its proper divisors (120691728).

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

70129392 is a wasteful number, since it uses less digits than its factorization.

70129392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 70129392 is about 8374.3293462820. The cubic root of 70129392 is about 412.3823076543.

The spelling of 70129392 in words is "seventy million, one hundred twenty-nine thousand, three hundred ninety-two".