730209742 has 4 divisors (see below), whose sum is σ = 1095314616. Its totient is φ = 365104870.

The previous prime is 730209737. The next prime is 730209749. The reversal of 730209742 is 247902037.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 730209698 and 730209707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730209749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182552434 + ... + 182552437.

It is an arithmetic number, because the mean of its divisors is an integer number (273828654).

Almost surely, 2^730209742 is an apocalyptic number.

730209742 is a deficient number, since it is larger than the sum of its proper divisors (365104874).

730209742 is a wasteful number, since it uses less digits than its factorization.

730209742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365104873.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 730209742 is about 27022.3933432996. The cubic root of 730209742 is about 900.4975610888.

The spelling of 730209742 in words is "seven hundred thirty million, two hundred nine thousand, seven hundred forty-two".