40450693 has 2 divisors, whose sum is σ = 40450694. Its totient is φ = 40450692.

The previous prime is 40450681. The next prime is 40450717. The reversal of 40450693 is 39605404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33907329 + 6543364 = 5823^2 + 2558^2 .

It is a cyclic number.

It is not a de Polignac number, because 40450693 - 2⁵ = 40450661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40450603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20225346 + 20225347.

It is an arithmetic number, because the mean of its divisors is an integer number (20225347).

Almost surely, 2^40450693 is an apocalyptic number.

It is an amenable number.

40450693 is a deficient number, since it is larger than the sum of its proper divisors (1).

40450693 is an equidigital number, since it uses as much as digits as its factorization.

40450693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 40450693 is about 6360.0859270925. The cubic root of 40450693 is about 343.2748521584.

The spelling of 40450693 in words is "forty million, four hundred fifty thousand, six hundred ninety-three".