730751890 has 32 divisors (see below), whose sum is σ = 1468310976. Its totient is φ = 259546560.

The previous prime is 730751881. The next prime is 730751891. The reversal of 730751890 is 98157037.

730751890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (730751891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72517 + ... + 81976.

It is an arithmetic number, because the mean of its divisors is an integer number (45884718).

Almost surely, 2^730751890 is an apocalyptic number.

730751890 is an abundant number, since it is smaller than the sum of its proper divisors (737559086).

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

730751890 is a wasteful number, since it uses less digits than its factorization.

730751890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154554.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 730751890 is about 27032.4229398698. The cubic root of 730751890 is about 900.7203656478.

The spelling of 730751890 in words is "seven hundred thirty million, seven hundred fifty-one thousand, eight hundred ninety".