40900843 has 2 divisors, whose sum is σ = 40900844. Its totient is φ = 40900842.

The previous prime is 40900819. The next prime is 40900879. The reversal of 40900843 is 34800904.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40900843 is a prime.

It is a super-2 number, since 2×40900843² = 3345757916221298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40900813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20450421 + 20450422.

It is an arithmetic number, because the mean of its divisors is an integer number (20450422).

Almost surely, 2^40900843 is an apocalyptic number.

40900843 is a deficient number, since it is larger than the sum of its proper divisors (1).

40900843 is an equidigital number, since it uses as much as digits as its factorization.

40900843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 40900843 is about 6395.3766894531. The cubic root of 40900843 is about 344.5435200675.

The spelling of 40900843 in words is "forty million, nine hundred thousand, eight hundred forty-three".