40210043 has 4 divisors (see below), whose sum is σ = 40250448. Its totient is φ = 40169640.

The previous prime is 40210039. The next prime is 40210063. The reversal of 40210043 is 34001204.

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 40210043 - 2² = 40210039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40210063) 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, 18671 + ... + 20712.

It is an arithmetic number, because the mean of its divisors is an integer number (10062612).

Almost surely, 2^40210043 is an apocalyptic number.

40210043 is a deficient number, since it is larger than the sum of its proper divisors (40405).

40210043 is a wasteful number, since it uses less digits than its factorization.

40210043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40404.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 40210043 is about 6341.1389355541. The cubic root of 40210043 is about 342.5927587217.

Adding to 40210043 its reverse (34001204), we get a palindrome (74211247).

The spelling of 40210043 in words is "forty million, two hundred ten thousand, forty-three".