409291741 has 2 divisors, whose sum is σ = 409291742. Its totient is φ = 409291740.

The previous prime is 409291733. The next prime is 409291837. The reversal of 409291741 is 147192904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 347039641 + 62252100 = 18629^2 + 7890^2 .

It is a cyclic number.

It is not a de Polignac number, because 409291741 - 2³ = 409291733 is a prime.

It is a super-2 number, since 2×409291741² = 335039458501622162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 409291741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409291721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204645870 + 204645871.

It is an arithmetic number, because the mean of its divisors is an integer number (204645871).

Almost surely, 2^409291741 is an apocalyptic number.

It is an amenable number.

409291741 is a deficient number, since it is larger than the sum of its proper divisors (1).

409291741 is an equidigital number, since it uses as much as digits as its factorization.

409291741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 409291741 is about 20230.9599623943. The cubic root of 409291741 is about 742.4678630371.

The spelling of 409291741 in words is "four hundred nine million, two hundred ninety-one thousand, seven hundred forty-one".