40725733 has 2 divisors, whose sum is σ = 40725734. Its totient is φ = 40725732.

The previous prime is 40725719. The next prime is 40725739. The reversal of 40725733 is 33752704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20493729 + 20232004 = 4527^2 + 4498^2 .

It is a cyclic number.

It is not a de Polignac number, because 40725733 - 2⁵ = 40725701 is a prime.

It is equal to p_2475094 and since 40725733 and 2475094 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 40725695 and 40725704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40725739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20362866 + 20362867.

It is an arithmetic number, because the mean of its divisors is an integer number (20362867).

Almost surely, 2^40725733 is an apocalyptic number.

It is an amenable number.

40725733 is a deficient number, since it is larger than the sum of its proper divisors (1).

40725733 is an equidigital number, since it uses as much as digits as its factorization.

40725733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 40725733 is about 6381.6716462068. The cubic root of 40725733 is about 344.0511151960.

The spelling of 40725733 in words is "forty million, seven hundred twenty-five thousand, seven hundred thirty-three".