40030753 has 4 divisors (see below), whose sum is σ = 45749440. Its totient is φ = 34312068.

The previous prime is 40030751. The next prime is 40030763. The reversal of 40030753 is 35703004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40030753 - 2¹ = 40030751 is a prime.

It is a super-3 number, since 3×40030753³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40030751) 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, 2859333 + ... + 2859346.

It is an arithmetic number, because the mean of its divisors is an integer number (11437360).

Almost surely, 2^40030753 is an apocalyptic number.

It is an amenable number.

40030753 is a deficient number, since it is larger than the sum of its proper divisors (5718687).

40030753 is an equidigital number, since it uses as much as digits as its factorization.

40030753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718686.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 40030753 is about 6326.9860913392. The cubic root of 40030753 is about 342.0828117009.

Adding to 40030753 its reverse (35703004), we get a palindrome (75733757).

The spelling of 40030753 in words is "forty million, thirty thousand, seven hundred fifty-three".