40330751 has 4 divisors (see below), whose sum is σ = 40522104. Its totient is φ = 40139400.

The previous prime is 40330729. The next prime is 40330811. The reversal of 40330751 is 15703304.

It is a happy number.

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 40330751 - 2⁶ = 40330687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40330051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95360 + ... + 95781.

It is an arithmetic number, because the mean of its divisors is an integer number (10130526).

Almost surely, 2^40330751 is an apocalyptic number.

40330751 is a deficient number, since it is larger than the sum of its proper divisors (191353).

40330751 is a wasteful number, since it uses less digits than its factorization.

40330751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191352.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 40330751 is about 6350.6496518073. The cubic root of 40330751 is about 342.9352301719.

The spelling of 40330751 in words is "forty million, three hundred thirty thousand, seven hundred fifty-one".