40918963 has 2 divisors, whose sum is σ = 40918964. Its totient is φ = 40918962.

The previous prime is 40918957. The next prime is 40918973. The reversal of 40918963 is 36981904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40918963 - 2⁵ = 40918931 is a prime.

It is not a weakly prime, because it can be changed into another prime (40918973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20459481 + 20459482.

It is an arithmetic number, because the mean of its divisors is an integer number (20459482).

Almost surely, 2^40918963 is an apocalyptic number.

40918963 is a deficient number, since it is larger than the sum of its proper divisors (1).

40918963 is an equidigital number, since it uses as much as digits as its factorization.

40918963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 40918963 is about 6396.7931809618. The cubic root of 40918963 is about 344.5943927505.

The spelling of 40918963 in words is "forty million, nine hundred eighteen thousand, nine hundred sixty-three".