730942 has 4 divisors (see below), whose sum is σ = 1096416. Its totient is φ = 365470.

The previous prime is 730913. The next prime is 730943. The reversal of 730942 is 249037.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730943) by changing a digit.

730942 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182734 + ... + 182737.

It is an arithmetic number, because the mean of its divisors is an integer number (274104).

2⁷³⁰⁹⁴² is an apocalyptic number.

730942 is a deficient number, since it is larger than the sum of its proper divisors (365474).

730942 is a wasteful number, since it uses less digits than its factorization.

730942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365473.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 730942 is about 854.9514606105. The cubic root of 730942 is about 90.0798468354.

Adding to 730942 its reverse (249037), we get a palindrome (979979).

The spelling of 730942 in words is "seven hundred thirty thousand, nine hundred forty-two".