42049499 has 2 divisors, whose sum is σ = 42049500. Its totient is φ = 42049498.

The previous prime is 42049493. The next prime is 42049529. The reversal of 42049499 is 99494024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42049499 - 2⁸ = 42049243 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (42049493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21024749 + 21024750.

It is an arithmetic number, because the mean of its divisors is an integer number (21024750).

Almost surely, 2^42049499 is an apocalyptic number.

42049499 is a deficient number, since it is larger than the sum of its proper divisors (1).

42049499 is an equidigital number, since it uses as much as digits as its factorization.

42049499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 42049499 is about 6484.5585046324. The cubic root of 42049499 is about 347.7391663089.

The spelling of 42049499 in words is "forty-two million, forty-nine thousand, four hundred ninety-nine".