40762291 has 2 divisors, whose sum is σ = 40762292. Its totient is φ = 40762290.

The previous prime is 40762289. The next prime is 40762297. The reversal of 40762291 is 19226704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40762291 - 2¹ = 40762289 is a prime.

Together with 40762289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40762297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20381145 + 20381146.

It is an arithmetic number, because the mean of its divisors is an integer number (20381146).

Almost surely, 2^40762291 is an apocalyptic number.

40762291 is a deficient number, since it is larger than the sum of its proper divisors (1).

40762291 is an equidigital number, since it uses as much as digits as its factorization.

40762291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 40762291 is about 6384.5353002392. The cubic root of 40762291 is about 344.1540317721.

Adding to 40762291 its reverse (19226704), we get a palindrome (59988995).

The spelling of 40762291 in words is "forty million, seven hundred sixty-two thousand, two hundred ninety-one".