40030454 has 16 divisors (see below), whose sum is σ = 63329280. Its totient is φ = 18924840.

The previous prime is 40030453. The next prime is 40030481. The reversal of 40030454 is 45403004.

It is a happy number.

40030454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40030454² = 3204874494892232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40030453) 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 7 ways as a sum of consecutive naturals, for example, 37127 + ... + 38189.

It is an arithmetic number, because the mean of its divisors is an integer number (3958080).

Almost surely, 2^40030454 is an apocalyptic number.

40030454 is a deficient number, since it is larger than the sum of its proper divisors (23298826).

40030454 is a wasteful number, since it uses less digits than its factorization.

40030454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 40030454 is about 6326.9624623511. The cubic root of 40030454 is about 342.0819599972.

Adding to 40030454 its reverse (45403004), we get a palindrome (85433458).

The spelling of 40030454 in words is "forty million, thirty thousand, four hundred fifty-four".