40730043 has 8 divisors (see below), whose sum is σ = 54734848. Its totient is φ = 26939304.

The previous prime is 40730029. The next prime is 40730047. The reversal of 40730043 is 34003704.

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

It is not a de Polignac number, because 40730043 - 2⁶ = 40729979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40730047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53071 + ... + 53832.

It is an arithmetic number, because the mean of its divisors is an integer number (6841856).

Almost surely, 2^40730043 is an apocalyptic number.

40730043 is a deficient number, since it is larger than the sum of its proper divisors (14004805).

40730043 is a wasteful number, since it uses less digits than its factorization.

40730043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107033.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 40730043 is about 6382.0093230894. The cubic root of 40730043 is about 344.0632517322.

Adding to 40730043 its reverse (34003704), we get a palindrome (74733747).

The spelling of 40730043 in words is "forty million, seven hundred thirty thousand, forty-three".