40846669 has 2 divisors, whose sum is σ = 40846670. Its totient is φ = 40846668.

The previous prime is 40846651. The next prime is 40846681. The reversal of 40846669 is 96664804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40793769 + 52900 = 6387^2 + 230^2 .

It is a cyclic number.

It is not a de Polignac number, because 40846669 - 2¹³ = 40838477 is a prime.

It is a super-2 number, since 2×40846669² = 3336900736791122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40846609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20423334 + 20423335.

It is an arithmetic number, because the mean of its divisors is an integer number (20423335).

Almost surely, 2^40846669 is an apocalyptic number.

It is an amenable number.

40846669 is a deficient number, since it is larger than the sum of its proper divisors (1).

40846669 is an equidigital number, since it uses as much as digits as its factorization.

40846669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 40846669 is about 6391.1398826813. The cubic root of 40846669 is about 344.3913345524.

The spelling of 40846669 in words is "forty million, eight hundred forty-six thousand, six hundred sixty-nine".