731402043 has 4 divisors (see below), whose sum is σ = 975202728. Its totient is φ = 487601360.

The previous prime is 731402029. The next prime is 731402053. The reversal of 731402043 is 340204137.

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

It is a cyclic number.

It is not a de Polignac number, because 731402043 - 2¹⁷ = 731270971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (731402053) by changing a digit.

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, 121900338 + ... + 121900343.

It is an arithmetic number, because the mean of its divisors is an integer number (243800682).

Almost surely, 2^731402043 is an apocalyptic number.

731402043 is a deficient number, since it is larger than the sum of its proper divisors (243800685).

731402043 is a wasteful number, since it uses less digits than its factorization.

731402043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243800684.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 731402043 is about 27044.4456959280. The cubic root of 731402043 is about 900.9874113531.

The spelling of 731402043 in words is "seven hundred thirty-one million, four hundred two thousand, forty-three".