40481873 has 2 divisors, whose sum is σ = 40481874. Its totient is φ = 40481872.

The previous prime is 40481867. The next prime is 40481893. The reversal of 40481873 is 37818404.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23892544 + 16589329 = 4888^2 + 4073^2 .

It is a cyclic number.

It is not a de Polignac number, because 40481873 - 2⁶ = 40481809 is a prime.

It is not a weakly prime, because it can be changed into another prime (40481803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20240936 + 20240937.

It is an arithmetic number, because the mean of its divisors is an integer number (20240937).

Almost surely, 2^40481873 is an apocalyptic number.

It is an amenable number.

40481873 is a deficient number, since it is larger than the sum of its proper divisors (1).

40481873 is an equidigital number, since it uses as much as digits as its factorization.

40481873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 40481873 is about 6362.5366796585. The cubic root of 40481873 is about 343.3630299718.

The spelling of 40481873 in words is "forty million, four hundred eighty-one thousand, eight hundred seventy-three".