70729050 has 72 divisors (see below), whose sum is σ = 204067296. Its totient is φ = 16164960.

The previous prime is 70729049. The next prime is 70729063. The reversal of 70729050 is 5092707.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 70728999 and 70729017.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2539 + ... + 12161.

It is an arithmetic number, because the mean of its divisors is an integer number (2834268).

Almost surely, 2^70729050 is an apocalyptic number.

70729050 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 70729050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102033648).

70729050 is an abundant number, since it is smaller than the sum of its proper divisors (133338246).

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

70729050 is a wasteful number, since it uses less digits than its factorization.

70729050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9652 (or 9640 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 70729050 is about 8410.0564801908. The cubic root of 70729050 is about 413.5543642368.

The spelling of 70729050 in words is "seventy million, seven hundred twenty-nine thousand, fifty".