730019457 has 24 divisors (see below), whose sum is σ = 1117527840. Its totient is φ = 457630080.

The previous prime is 730019441. The next prime is 730019489. The reversal of 730019457 is 754910037.

It is a happy number.

It is not a de Polignac number, because 730019457 - 2⁴ = 730019441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (730019497) 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 23 ways as a sum of consecutive naturals, for example, 301582 + ... + 303992.

It is an arithmetic number, because the mean of its divisors is an integer number (46563660).

Almost surely, 2^730019457 is an apocalyptic number.

It is an amenable number.

730019457 is a deficient number, since it is larger than the sum of its proper divisors (387508383).

730019457 is a wasteful number, since it uses less digits than its factorization.

730019457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4413 (or 4410 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 730019457 is about 27018.8722377526. The cubic root of 730019457 is about 900.4193342202.

The spelling of 730019457 in words is "seven hundred thirty million, nineteen thousand, four hundred fifty-seven".