40254043 has 4 divisors (see below), whose sum is σ = 41110560. Its totient is φ = 39397528.

The previous prime is 40254041. The next prime is 40254091. The reversal of 40254043 is 34045204.

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 40254043 - 2¹ = 40254041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40254041) 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, 428188 + ... + 428281.

It is an arithmetic number, because the mean of its divisors is an integer number (10277640).

Almost surely, 2^40254043 is an apocalyptic number.

40254043 is a deficient number, since it is larger than the sum of its proper divisors (856517).

40254043 is an equidigital number, since it uses as much as digits as its factorization.

40254043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856516.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 40254043 is about 6344.6073952610. The cubic root of 40254043 is about 342.7176743341.

Adding to 40254043 its reverse (34045204), we get a palindrome (74299247).

It can be divided in two parts, 402 and 54043, that added together give a palindrome (54445).

The spelling of 40254043 in words is "forty million, two hundred fifty-four thousand, forty-three".