40878833 has 2 divisors, whose sum is σ = 40878834. Its totient is φ = 40878832.

The previous prime is 40878793. The next prime is 40878881. The reversal of 40878833 is 33887804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26801329 + 14077504 = 5177^2 + 3752^2 .

It is a cyclic number.

It is not a de Polignac number, because 40878833 - 2⁶ = 40878769 is a prime.

It is not a weakly prime, because it can be changed into another prime (40878883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20439416 + 20439417.

It is an arithmetic number, because the mean of its divisors is an integer number (20439417).

Almost surely, 2^40878833 is an apocalyptic number.

It is an amenable number.

40878833 is a deficient number, since it is larger than the sum of its proper divisors (1).

40878833 is an equidigital number, since it uses as much as digits as its factorization.

40878833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 40878833 is about 6393.6556835663. The cubic root of 40878833 is about 344.4817058275.

The spelling of 40878833 in words is "forty million, eight hundred seventy-eight thousand, eight hundred thirty-three".