40040956541 has 4 divisors (see below), whose sum is σ = 40073967612. Its totient is φ = 40007945472.

The previous prime is 40040956523. The next prime is 40040956547. The reversal of 40040956541 is 14565904004.

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 14013587641 + 26027368900 = 118379^2 + 161330^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40040956541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40040956495 and 40040956504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040956547) 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, 16503716 + ... + 16506141.

It is an arithmetic number, because the mean of its divisors is an integer number (10018491903).

Almost surely, 2^40040956541 is an apocalyptic number.

It is an amenable number.

40040956541 is a deficient number, since it is larger than the sum of its proper divisors (33011071).

40040956541 is a wasteful number, since it uses less digits than its factorization.

40040956541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33011070.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 40040956541 in words is "forty billion, forty million, nine hundred fifty-six thousand, five hundred forty-one".