40813403 has 2 divisors, whose sum is σ = 40813404. Its totient is φ = 40813402.

The previous prime is 40813397. The next prime is 40813471. The reversal of 40813403 is 30431804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40813403 - 2¹⁰ = 40812379 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (40813103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20406701 + 20406702.

It is an arithmetic number, because the mean of its divisors is an integer number (20406702).

Almost surely, 2^40813403 is an apocalyptic number.

40813403 is a deficient number, since it is larger than the sum of its proper divisors (1).

40813403 is an equidigital number, since it uses as much as digits as its factorization.

40813403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 40813403 is about 6388.5368434408. The cubic root of 40813403 is about 344.2978170642.

The spelling of 40813403 in words is "forty million, eight hundred thirteen thousand, four hundred three".