40390938201 has 4 divisors (see below), whose sum is σ = 53854584272. Its totient is φ = 26927292132.

The previous prime is 40390938199. The next prime is 40390938209. The reversal of 40390938201 is 10283909304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40390938201 - 2¹ = 40390938199 is a prime.

It is a super-2 number, since 2×40390938201² (a number of 22 digits) contains 22 as substring.

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 40390938201.

It is not an unprimeable number, because it can be changed into a prime (40390938209) 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, 6731823031 + ... + 6731823036.

It is an arithmetic number, because the mean of its divisors is an integer number (13463646068).

Almost surely, 2^40390938201 is an apocalyptic number.

It is an amenable number.

40390938201 is a deficient number, since it is larger than the sum of its proper divisors (13463646071).

40390938201 is a wasteful number, since it uses less digits than its factorization.

40390938201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13463646070.

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 40390938201 in words is "forty billion, three hundred ninety million, nine hundred thirty-eight thousand, two hundred one".