40999403 has 2 divisors, whose sum is σ = 40999404. Its totient is φ = 40999402.

The previous prime is 40999351. The next prime is 40999411. The reversal of 40999403 is 30499904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40999403 - 2¹² = 40995307 is a prime.

It is not a weakly prime, because it can be changed into another prime (40999423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20499701 + 20499702.

It is an arithmetic number, because the mean of its divisors is an integer number (20499702).

Almost surely, 2^40999403 is an apocalyptic number.

40999403 is a deficient number, since it is larger than the sum of its proper divisors (1).

40999403 is an equidigital number, since it uses as much as digits as its factorization.

40999403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 40999403 is about 6403.0776193952. The cubic root of 40999403 is about 344.8200503832.

The spelling of 40999403 in words is "forty million, nine hundred ninety-nine thousand, four hundred three".