731445342 has 8 divisors (see below), whose sum is σ = 1462890696. Its totient is φ = 243815112.

The previous prime is 731445331. The next prime is 731445401. The reversal of 731445342 is 243544137.

It is a sphenic number, since it is the product of 3 distinct primes.

731445342 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60953773 + ... + 60953784.

It is an arithmetic number, because the mean of its divisors is an integer number (182861337).

Almost surely, 2^731445342 is an apocalyptic number.

731445342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

731445342 is a wasteful number, since it uses less digits than its factorization.

731445342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121907562.

The product of its digits is 40320, while the sum is 33.

The square root of 731445342 is about 27045.2461996559. The cubic root of 731445342 is about 901.0051904868.

Adding to 731445342 its reverse (243544137), we get a palindrome (974989479).

The spelling of 731445342 in words is "seven hundred thirty-one million, four hundred forty-five thousand, three hundred forty-two".