40984451 has 2 divisors, whose sum is σ = 40984452. Its totient is φ = 40984450.

The previous prime is 40984439. The next prime is 40984457. The reversal of 40984451 is 15448904.

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-40984451 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (40984457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20492225 + 20492226.

It is an arithmetic number, because the mean of its divisors is an integer number (20492226).

Almost surely, 2^40984451 is an apocalyptic number.

40984451 is a deficient number, since it is larger than the sum of its proper divisors (1).

40984451 is an equidigital number, since it uses as much as digits as its factorization.

40984451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 40984451 is about 6401.9099493823. The cubic root of 40984451 is about 344.7781280145.

The spelling of 40984451 in words is "forty million, nine hundred eighty-four thousand, four hundred fifty-one".