40774451 has 2 divisors, whose sum is σ = 40774452. Its totient is φ = 40774450.

The previous prime is 40774403. The next prime is 40774453. The reversal of 40774451 is 15447704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40774451 - 2⁶ = 40774387 is a prime.

It is a Sophie Germain prime.

Together with 40774453, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_2477921 and since 40774451 and 2477921 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (40774453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20387225 + 20387226.

It is an arithmetic number, because the mean of its divisors is an integer number (20387226).

Almost surely, 2^40774451 is an apocalyptic number.

40774451 is a deficient number, since it is larger than the sum of its proper divisors (1).

40774451 is an equidigital number, since it uses as much as digits as its factorization.

40774451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 40774451 is about 6385.4875303300. The cubic root of 40774451 is about 344.1882504650.

The spelling of 40774451 in words is "forty million, seven hundred seventy-four thousand, four hundred fifty-one".