40197041 has 4 divisors (see below), whose sum is σ = 40221300. Its totient is φ = 40172784.

The previous prime is 40197029. The next prime is 40197107. The reversal of 40197041 is 14079104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34810000 + 5387041 = 5900^2 + 2321^2 .

It is a cyclic number.

It is not a de Polignac number, because 40197041 - 2¹⁰ = 40196017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40197041.

It is not an unprimeable number, because it can be changed into a prime (40197341) 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, 9446 + ... + 13023.

It is an arithmetic number, because the mean of its divisors is an integer number (10055325).

Almost surely, 2^40197041 is an apocalyptic number.

It is an amenable number.

40197041 is a deficient number, since it is larger than the sum of its proper divisors (24259).

40197041 is a wasteful number, since it uses less digits than its factorization.

40197041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24258.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 40197041 is about 6340.1136425146. The cubic root of 40197041 is about 342.5558287169. Note that the first 3 decimals are identical.

The spelling of 40197041 in words is "forty million, one hundred ninety-seven thousand, forty-one".