49040491 has 2 divisors, whose sum is σ = 49040492. Its totient is φ = 49040490.

The previous prime is 49040447. The next prime is 49040557. The reversal of 49040491 is 19404094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49040491 - 2¹³ = 49032299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49040591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24520245 + 24520246.

It is an arithmetic number, because the mean of its divisors is an integer number (24520246).

Almost surely, 2^49040491 is an apocalyptic number.

49040491 is a deficient number, since it is larger than the sum of its proper divisors (1).

49040491 is an equidigital number, since it uses as much as digits as its factorization.

49040491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 49040491 is about 7002.8916170393. The cubic root of 49040491 is about 366.0313384535.

The spelling of 49040491 in words is "forty-nine million, forty thousand, four hundred ninety-one".