40812049 has 2 divisors, whose sum is σ = 40812050. Its totient is φ = 40812048.

The previous prime is 40812043. The next prime is 40812059. The reversal of 40812049 is 94021804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26884225 + 13927824 = 5185^2 + 3732^2 .

It is a cyclic number.

It is not a de Polignac number, because 40812049 - 2⁷ = 40811921 is a prime.

It is not a weakly prime, because it can be changed into another prime (40812043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20406024 + 20406025.

It is an arithmetic number, because the mean of its divisors is an integer number (20406025).

Almost surely, 2^40812049 is an apocalyptic number.

It is an amenable number.

40812049 is a deficient number, since it is larger than the sum of its proper divisors (1).

40812049 is an equidigital number, since it uses as much as digits as its factorization.

40812049 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 40812049 is about 6388.4308715051. The cubic root of 40812049 is about 344.2940096189.

The spelling of 40812049 in words is "forty million, eight hundred twelve thousand, forty-nine".