730071870 has 64 divisors (see below), whose sum is σ = 1916006400. Its totient is φ = 176566400.

The previous prime is 730071847. The next prime is 730071877. The reversal of 730071870 is 78170037.

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 (730071877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149731 + ... + 154529.

It is an arithmetic number, because the mean of its divisors is an integer number (29937600).

Almost surely, 2^730071870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 730071870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (958003200).

730071870 is an abundant number, since it is smaller than the sum of its proper divisors (1185934530).

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

730071870 is a wasteful number, since it uses less digits than its factorization.

730071870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5281.

The product of its (nonzero) digits is 8232, while the sum is 33.

The square root of 730071870 is about 27019.8421534990. The cubic root of 730071870 is about 900.4408827551.

The spelling of 730071870 in words is "seven hundred thirty million, seventy-one thousand, eight hundred seventy".