730919942 has 4 divisors (see below), whose sum is σ = 1096379916. Its totient is φ = 365459970.

The previous prime is 730919939. The next prime is 730919957. The reversal of 730919942 is 249919037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 249919037 = 157 ⋅1591841.

It is a super-3 number, since 3×730919942³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 730919893 and 730919902.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 182729984 + ... + 182729987.

It is an arithmetic number, because the mean of its divisors is an integer number (274094979).

Almost surely, 2^730919942 is an apocalyptic number.

730919942 is a deficient number, since it is larger than the sum of its proper divisors (365459974).

730919942 is a wasteful number, since it uses less digits than its factorization.

730919942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365459973.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 730919942 is about 27035.5311026064. The cubic root of 730919942 is about 900.7894069823.

The spelling of 730919942 in words is "seven hundred thirty million, nine hundred nineteen thousand, nine hundred forty-two".