40030331 has 16 divisors (see below), whose sum is σ = 45619200. Its totient is φ = 34795200.

The previous prime is 40030313. The next prime is 40030357. The reversal of 40030331 is 13303004.

It is a happy number.

40030331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40030331 - 2¹⁴ = 40013947 is a prime.

It is a super-2 number, since 2×40030331² = 3204854799939122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40030301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29690 + ... + 31008.

It is an arithmetic number, because the mean of its divisors is an integer number (2851200).

Almost surely, 2^40030331 is an apocalyptic number.

40030331 is a deficient number, since it is larger than the sum of its proper divisors (5588869).

40030331 is a wasteful number, since it uses less digits than its factorization.

40030331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 40030331 is about 6326.9527420394. The cubic root of 40030331 is about 342.0816096296.

Adding to 40030331 its reverse (13303004), we get a palindrome (53333335).

The spelling of 40030331 in words is "forty million, thirty thousand, three hundred thirty-one".