40284899 has 2 divisors, whose sum is σ = 40284900. Its totient is φ = 40284898.

The previous prime is 40284877. The next prime is 40284913. The reversal of 40284899 is 99848204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40284899 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 (40284809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20142449 + 20142450.

It is an arithmetic number, because the mean of its divisors is an integer number (20142450).

Almost surely, 2^40284899 is an apocalyptic number.

40284899 is a deficient number, since it is larger than the sum of its proper divisors (1).

40284899 is an equidigital number, since it uses as much as digits as its factorization.

40284899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 40284899 is about 6347.0386007964. The cubic root of 40284899 is about 342.8052199562.

The spelling of 40284899 in words is "forty million, two hundred eighty-four thousand, eight hundred ninety-nine".