40040020263 has 8 divisors (see below), whose sum is σ = 53387618800. Its totient is φ = 26692884288.

The previous prime is 40040020261. The next prime is 40040020297. The reversal of 40040020263 is 36202004004.

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

It is not a de Polignac number, because 40040020263 - 2¹ = 40040020261 is a prime.

It is a super-2 number, since 2×40040020263² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040020261) 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, 271353 + ... + 392061.

It is an arithmetic number, because the mean of its divisors is an integer number (6673452350).

Almost surely, 2^40040020263 is an apocalyptic number.

40040020263 is a deficient number, since it is larger than the sum of its proper divisors (13347598537).

40040020263 is a wasteful number, since it uses less digits than its factorization.

40040020263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231281.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 40040020263 its reverse (36202004004), we get a palindrome (76242024267).

The spelling of 40040020263 in words is "forty billion, forty million, twenty thousand, two hundred sixty-three".