40516541 has 4 divisors (see below), whose sum is σ = 43633212. Its totient is φ = 37399872.

The previous prime is 40516537. The next prime is 40516543. The reversal of 40516541 is 14561504.

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 12996025 + 27520516 = 3605^2 + 5246^2 .

It is a cyclic number.

It is not a de Polignac number, because 40516541 - 2² = 40516537 is a prime.

It is a super-3 number, since 3×40516541³ (a number of 24 digits) contains 333 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 40516541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40516543) 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, 1558316 + ... + 1558341.

It is an arithmetic number, because the mean of its divisors is an integer number (10908303).

Almost surely, 2^40516541 is an apocalyptic number.

It is an amenable number.

40516541 is a deficient number, since it is larger than the sum of its proper divisors (3116671).

40516541 is a wasteful number, since it uses less digits than its factorization.

40516541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3116670.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 40516541 is about 6365.2604817085. The cubic root of 40516541 is about 343.4610187934.

The spelling of 40516541 in words is "forty million, five hundred sixteen thousand, five hundred forty-one".