40220043 has 8 divisors (see below), whose sum is σ = 53672448. Its totient is φ = 26790504.

The previous prime is 40220041. The next prime is 40220053. The reversal of 40220043 is 34002204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40220043 - 2¹ = 40220041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40220041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071 + ... + 9032.

It is an arithmetic number, because the mean of its divisors is an integer number (6709056).

Almost surely, 2^40220043 is an apocalyptic number.

40220043 is a deficient number, since it is larger than the sum of its proper divisors (13452405).

40220043 is a wasteful number, since it uses less digits than its factorization.

40220043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11433.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 40220043 is about 6341.9273884207. The cubic root of 40220043 is about 342.6211566324.

Adding to 40220043 its reverse (34002204), we get a palindrome (74222247).

The spelling of 40220043 in words is "forty million, two hundred twenty thousand, forty-three".