40048291 has 2 divisors, whose sum is σ = 40048292. Its totient is φ = 40048290.

The previous prime is 40048279. The next prime is 40048301. The reversal of 40048291 is 19284004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40048291 - 2⁵ = 40048259 is a prime.

It is a super-2 number, since 2×40048291² = 3207731224041362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40048201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20024145 + 20024146.

It is an arithmetic number, because the mean of its divisors is an integer number (20024146).

Almost surely, 2^40048291 is an apocalyptic number.

40048291 is a deficient number, since it is larger than the sum of its proper divisors (1).

40048291 is an equidigital number, since it uses as much as digits as its factorization.

40048291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 40048291 is about 6328.3719075288. The cubic root of 40048291 is about 342.1327614018.

The spelling of 40048291 in words is "forty million, forty-eight thousand, two hundred ninety-one".