90408041 has 2 divisors, whose sum is σ = 90408042. Its totient is φ = 90408040.

The previous prime is 90408013. The next prime is 90408077. The reversal of 90408041 is 14080409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71048041 + 19360000 = 8429^2 + 4400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90408041 is a prime.

It is a super-2 number, since 2×90408041² = 16347227754915362, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90408041.

It is not a weakly prime, because it can be changed into another prime (90408641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45204020 + 45204021.

It is an arithmetic number, because the mean of its divisors is an integer number (45204021).

Almost surely, 2^90408041 is an apocalyptic number.

It is an amenable number.

90408041 is a deficient number, since it is larger than the sum of its proper divisors (1).

90408041 is an equidigital number, since it uses as much as digits as its factorization.

90408041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 90408041 is about 9508.3143090666. The cubic root of 90408041 is about 448.8167118124.

The spelling of 90408041 in words is "ninety million, four hundred eight thousand, forty-one".