40296491 has 2 divisors, whose sum is σ = 40296492. Its totient is φ = 40296490.

The previous prime is 40296463. The next prime is 40296499. The reversal of 40296491 is 19469204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40296491 - 2¹⁸ = 40034347 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40296499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20148245 + 20148246.

It is an arithmetic number, because the mean of its divisors is an integer number (20148246).

Almost surely, 2^40296491 is an apocalyptic number.

40296491 is a deficient number, since it is larger than the sum of its proper divisors (1).

40296491 is an equidigital number, since it uses as much as digits as its factorization.

40296491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 40296491 is about 6347.9517168926. The cubic root of 40296491 is about 342.8380975945.

The spelling of 40296491 in words is "forty million, two hundred ninety-six thousand, four hundred ninety-one".