40412043 has 48 divisors (see below), whose sum is σ = 71547840. Its totient is φ = 21454848.

The previous prime is 40412039. The next prime is 40412089. The reversal of 40412043 is 34021404.

It is not a de Polignac number, because 40412043 - 2² = 40412039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40412093) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103693 + ... + 104081.

It is an arithmetic number, because the mean of its divisors is an integer number (1490580).

Almost surely, 2^40412043 is an apocalyptic number.

40412043 is a deficient number, since it is larger than the sum of its proper divisors (31135797).

40412043 is a wasteful number, since it uses less digits than its factorization.

40412043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40412043 is about 6357.0467199793. The cubic root of 40412043 is about 343.1654860805.

Adding to 40412043 its reverse (34021404), we get a palindrome (74433447).

It can be divided in two parts, 4041 and 2043, that added together give a square (6084 = 78²).

The spelling of 40412043 in words is "forty million, four hundred twelve thousand, forty-three".