40494541 has 2 divisors, whose sum is σ = 40494542. Its totient is φ = 40494540.

The previous prime is 40494533. The next prime is 40494551. The reversal of 40494541 is 14549404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23561316 + 16933225 = 4854^2 + 4115^2 .

It is a cyclic number.

It is not a de Polignac number, because 40494541 - 2³ = 40494533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40494521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20247270 + 20247271.

It is an arithmetic number, because the mean of its divisors is an integer number (20247271).

Almost surely, 2^40494541 is an apocalyptic number.

It is an amenable number.

40494541 is a deficient number, since it is larger than the sum of its proper divisors (1).

40494541 is an equidigital number, since it uses as much as digits as its factorization.

40494541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 40494541 is about 6363.5321166786. The cubic root of 40494541 is about 343.3988424553.

The spelling of 40494541 in words is "forty million, four hundred ninety-four thousand, five hundred forty-one".